Publish merged standalone ClassOne model

chat_template.jinja

@@ -1,386 +1,386 @@
-{#
-  Template: Google Gemma 4 Canonical Chat Template
-  Author: Google Gemma Engineering Team
-  Published: 2026-07-09
-  Context: Fixed tool-calling loops, turn closures, and thinking content-ordering.
-#}
-{%- macro format_parameters(properties, required, filter_keys=false) -%}
-    {%- set standard_keys = ['description', 'type', 'properties', 'required', 'nullable'] -%}
-    {%- set ns = namespace(found_first=false) -%}
-    {%- for key, value in properties | dictsort -%}
-        {%- set add_comma = false -%}
-        {%- if not filter_keys or key not in standard_keys -%}
-            {%- if ns.found_first %},{% endif -%}
-            {%- set ns.found_first = true -%}
-            {{ key }}:{
-            {%- if value['description'] -%}
-                description:<|"|>{{ value['description'] }}<|"|>
-                {%- set add_comma = true -%}
-            {%- endif -%}
-            {%- if value['type'] | upper == 'STRING' -%}
-                {%- if value['enum'] -%}
-                    {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}
-                    enum:{{ format_argument(value['enum']) }}
-                {%- endif -%}
-            {%- elif value['type'] | upper == 'ARRAY' -%}
-                {%- if value['items'] is mapping and value['items'] -%}
-                    {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}
-                    items:{
-                    {%- set ns_items = namespace(found_first=false) -%}
-                    {%- for item_key, item_value in value['items'] | dictsort -%}
-                        {%- if item_value is not none -%}
-                            {%- if ns_items.found_first %},{% endif -%}
-                            {%- set ns_items.found_first = true -%}
-                            {%- if item_key == 'properties' -%}
-                                properties:{
-                                {%- if item_value is mapping -%}
-                                    {{- format_parameters(item_value, value['items']['required'] | default([])) -}}
-                                {%- endif -%}
-                                }
-                            {%- elif item_key == 'required' -%}
-                                required:[
-                                {%- for req_item in item_value -%}
-                                    <|"|>{{- req_item -}}<|"|>
-                                    {%- if not loop.last %},{% endif -%}
-                                {%- endfor -%}
-                                ]
-                            {%- elif item_key == 'type' -%}
-                                {%- if item_value is string -%}
-                                    type:{{ format_argument(item_value | upper) }}
-                                {%- else -%}
-                                    type:{{ format_argument(item_value | map('upper') | list) }}
-                                {%- endif -%}
-                            {%- else -%}
-                                {{ item_key }}:{{ format_argument(item_value) }}
-                            {%- endif -%}
-                        {%- endif -%}
-                    {%- endfor -%}
-                    }
-                {%- endif -%}
-            {%- endif -%}
-            {%- if value['nullable'] %}
-                {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}
-                nullable:true
-            {%- endif -%}
-            {%- if value['type'] | upper == 'OBJECT' -%}
-                {%- if value['properties'] is defined and value['properties'] is mapping -%}
-                    {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}
-                    properties:{
-                    {{- format_parameters(value['properties'], value['required'] | default([])) -}}
-                    }
-                {%- elif value is mapping -%}
-                    {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}
-                    properties:{
-                    {{- format_parameters(value, value['required'] | default([]), filter_keys=true) -}}
-                    }
-                {%- endif -%}
-                {%- if value['required'] -%}
-                    {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}
-                    required:[
-                    {%- for item in value['required'] | default([]) -%}
-                        <|"|>{{- item -}}<|"|>
-                        {%- if not loop.last %},{% endif -%}
-                    {%- endfor -%}
-                    ]
-                {%- endif -%}
-            {%- endif -%}
-            {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}
-            type:<|"|>{{ value['type'] | upper }}<|"|>}
-        {%- endif -%}
-    {%- endfor -%}
-{%- endmacro -%}
-{%- macro format_function_declaration(tool_data) -%}
-    declaration:{{- tool_data['function']['name'] -}}{description:<|"|>{{- tool_data['function']['description'] -}}<|"|>
-    {%- set params = tool_data['function']['parameters'] -%}
-    {%- if params -%}
-        ,parameters:{
-        {%- if params['properties'] -%}
-            properties:{ {{- format_parameters(params['properties'], params['required']) -}} },
-        {%- endif -%}
-        {%- if params['required'] -%}
-            required:[
-            {%- for item in params['required'] -%}
-                <|"|>{{- item -}}<|"|>
-                {{- ',' if not loop.last -}}
-            {%- endfor -%}
-            ],
-        {%- endif -%}
-        {%- if params['type'] -%}
-            type:<|"|>{{- params['type'] | upper -}}<|"|>}
-        {%- endif -%}
-    {%- endif -%}
-    {%- if 'response' in tool_data['function'] -%}
-        {%- set response_declaration = tool_data['function']['response'] -%}
-        ,response:{
-        {%- if response_declaration['description'] -%}
-            description:<|"|>{{- response_declaration['description'] -}}<|"|>,
-        {%- endif -%}
-        {%- if response_declaration['type'] | upper == 'OBJECT' -%}
-            type:<|"|>{{- response_declaration['type'] | upper -}}<|"|>}
-        {%- endif -%}
-    {%- endif -%}
-    }
-{%- endmacro -%}
-{%- macro format_argument(argument, escape_keys=True) -%}
-    {%- if argument is none -%}
-        {{- 'null' -}}
-    {%- elif argument is string -%}
-        {{- '<|"|>' + argument + '<|"|>' -}}
-    {%- elif argument is boolean -%}
-        {{- 'true' if argument else 'false' -}}
-    {%- elif argument is mapping -%}
-        {{- '{' -}}
-        {%- set ns = namespace(found_first=false) -%}
-        {%- for key, value in argument | dictsort -%}
-            {%- if ns.found_first %},{% endif -%}
-            {%- set ns.found_first = true -%}
-            {%- if escape_keys -%}
-                {{- '<|"|>' + key + '<|"|>' -}}
-            {%- else -%}
-                {{- key -}}
-            {%- endif -%}
-            :{{- format_argument(value, escape_keys=escape_keys) -}}
-        {%- endfor -%}
-        {{- '}' -}}
-    {%- elif argument is sequence -%}
-        {{- '[' -}}
-        {%- for item in argument -%}
-            {{- format_argument(item, escape_keys=escape_keys) -}}
-            {%- if not loop.last %},{% endif -%}
-        {%- endfor -%}
-        {{- ']' -}}
-    {%- else -%}
-        {{- argument -}}
-    {%- endif -%}
-{%- endmacro -%}
-{%- macro strip_thinking(text) -%}
-    {%- set ns = namespace(result='') -%}
-    {%- for part in text.split('<channel|>') -%}
-        {%- if '<|channel>' in part -%}
-            {%- set ns.result = ns.result + part.split('<|channel>')[0] -%}
-        {%- else -%}
-            {%- set ns.result = ns.result + part -%}
-        {%- endif -%}
-    {%- endfor -%}
-    {{- ns.result | trim -}}
-{%- endmacro -%}
-
-{%- macro format_tool_response_block(tool_name, response) -%}
-    {{- '<|tool_response>' -}}
-    {%- if response is mapping -%}
-        {{- 'response:' + tool_name + '{' -}}
-        {%- for key, value in response | dictsort -%}
-            {{- key -}}:{{- format_argument(value, escape_keys=False) -}}
-            {%- if not loop.last %},{% endif -%}
-        {%- endfor -%}
-        {{- '}' -}}
-    {%- else -%}
-        {{- 'response:' + tool_name + '{value:' + format_argument(response, escape_keys=False) + '}' -}}
-    {%- endif -%}
-    {{- '<tool_response|>' -}}
-{%- endmacro -%}
-
-{#- ===== SETUP ===== -#}
-{%- set ns = namespace(prev_message_type=None, prev_non_tool_role=None) -%}
-{%- set loop_messages = messages -%}
-{%- set enable_thinking = enable_thinking | default(false) -%}
-{%- set preserve_thinking = preserve_thinking | default(false) -%}
-{{- bos_token -}}
-{#- Handle System/Tool Definitions Block -#}
-{%- if enable_thinking or tools or (messages and messages[0]['role'] in ['system', 'developer']) -%}
-    {{- '<|turn>system\n' -}}
-    {#- Inject Thinking token at the very top of the FIRST system turn -#}
-    {%- if enable_thinking -%}
-        {{- '<|think|>\n' -}}
-        {%- set ns.prev_message_type = 'think' -%}
-    {%- endif -%}
-    {%- if messages and messages[0]['role'] in ['system', 'developer'] -%}
-        {%- if messages[0]['content'] is string -%}
-            {{- messages[0]['content'] | trim -}}
-        {%- elif messages[0]['content'] is sequence -%}
-            {%- for item in messages[0]['content'] -%}
-                {{- item['text'] | trim + ' '-}}
-            {%- endfor -%}
-        {%- endif -%}
-        {%- set loop_messages = messages[1:] -%}
-    {%- endif -%}
-    {%- if tools -%}
-        {%- for tool in tools %}
-            {{- '<|tool>' -}}
-            {{- format_function_declaration(tool) | trim -}}
-            {{- '<tool|>' -}}
-        {%- endfor %}
-        {%- set ns.prev_message_type = 'tool' -%}
-    {%- endif -%}
-    {{- '<turn|>\n' -}}
-{%- endif %}
-
-{#- Pre-scan: find last user message index for reasoning guard -#}
-{%- set ns_turn = namespace(last_user_idx=-1) -%}
-{%- for i in range(loop_messages | length) -%}
-    {%- if loop_messages[i]['role'] == 'user' -%}
-        {%- set ns_turn.last_user_idx = i -%}
-    {%- endif -%}
-{%- endfor -%}
-
-{#- Loop through messages -#}
-{%- for message in loop_messages -%}
-    {%- if message['role'] != 'tool' -%}
-    {%- set ns.prev_message_type = None -%}
-    {%- set role = 'model' if message['role'] == 'assistant' else message['role'] -%}
-    {#- Detect continuation using tracked state — O(1) instead of O(n) backward scan -#}
-    {%- set continue_same_model_turn = (role == 'model' and ns.prev_non_tool_role == 'assistant') -%}
-    {%- if not continue_same_model_turn -%}
-        {{- '<|turn>' + role + '\n' }}
-    {%- endif -%}
-
-    {#- Render reasoning/reasoning_content as thinking channel -#}
-    {%- set thinking_text = message.get('reasoning') or message.get('reasoning_content') -%}
-    {%- set thinking_gate = (loop.index0 > ns_turn.last_user_idx) or (preserve_thinking and message.get('tool_calls')) -%}
-    {%- if thinking_text and thinking_gate -%}
-        {{- '<|channel>thought\n' + thinking_text + '\n<channel|>' -}}
-    {%- endif -%}
-
-            {%- if message.get('tool_calls') -%}
-                {%- for tool_call in message.get('tool_calls') -%}
-                    {%- set function = tool_call['function'] -%}
-                    {{- '<|tool_call>call:' + function['name'] + '{' -}}
-                    {%- if function['arguments'] is mapping -%}
-                        {%- set ns_args = namespace(found_first=false) -%}
-                        {%- for key, value in function['arguments'] | dictsort -%}
-                            {%- if ns_args.found_first %},{% endif -%}
-                            {%- set ns_args.found_first = true -%}
-                            {{- key -}}:{{- format_argument(value, escape_keys=False) -}}
-                        {%- endfor -%}
-                    {%- elif function['arguments'] is none -%}
-                    {%- else -%}
-                        {{- raise_exception(
-                            "chat_template: tool_calls[].function.arguments must be a "
-                            "JSON object (mapping), not a string. Deserialize arguments "
-                            "before passing to the template."
-                        ) -}}
-                    {%- endif -%}
-                    {{- '}<tool_call|>' -}}
-                {%- endfor -%}
-                {%- set ns.prev_message_type = 'tool_call' -%}
-            {%- endif -%}
-
-            {%- set ns_tr_out = namespace(flag=false) -%}
-            {%- if message.get('tool_responses') -%}
-                {#- Legacy: tool_responses embedded on the assistant message (Google/Gemma native) -#}
-                {%- for tool_response in message.get('tool_responses') -%}
-                    {{- format_tool_response_block(tool_response['name'] | default('unknown', true), tool_response['response']) -}}
-                    {%- set ns_tr_out.flag = true -%}
-                    {%- set ns.prev_message_type = 'tool_response' -%}
-                {%- endfor -%}
-            {%- elif message.get('tool_calls') -%}
-                {#- OpenAI Chat Completions: forward-scan consecutive role:tool messages -#}
-                {%- set ns_tool_scan = namespace(stopped=false) -%}
-                {%- for k in range(loop.index0 + 1, loop_messages | length) -%}
-                    {%- if ns_tool_scan.stopped -%}
-                    {%- elif loop_messages[k]['role'] != 'tool' -%}
-                        {%- set ns_tool_scan.stopped = true -%}
-                    {%- else -%}
-                        {%- set follow = loop_messages[k] -%}
-                        {#- Resolve tool_call_id to function name -#}
-                        {%- set ns_tname = namespace(name=follow.get('name') or 'unknown') -%}
-                        {%- for tc in message.get('tool_calls') -%}
-                            {%- if tc.get('id') == follow.get('tool_call_id') -%}
-                                {%- set ns_tname.name = tc['function']['name'] -%}
-                            {%- endif -%}
-                        {%- endfor -%}
-                        {#- Handle content as string or content-parts array -#}
-                        {%- set tool_body = follow.get('content') -%}
-                        {%- if tool_body is string -%}
-                            {{- format_tool_response_block(ns_tname.name, tool_body) -}}
-                        {%- elif tool_body is sequence and tool_body is not string -%}
-                            {%- set ns_txt = namespace(s='') -%}
-                            {%- for part in tool_body -%}
-                                {%- if part.get('type') == 'text' -%}
-                                    {%- set ns_txt.s = ns_txt.s + (part.get('text') | default('')) -%}
-                                {%- endif -%}
-                            {%- endfor -%}
-                            {{- format_tool_response_block(ns_tname.name, ns_txt.s) -}}
-                            {%- for part in tool_body -%}
-                                {%- if part.get('type') in ['image', 'image_url'] -%}
-                                    {{- '<|image|>' -}}
-                                {%- elif part.get('type') in ['audio', 'input_audio'] -%}
-                                    {{- '<|audio|>' -}}
-                                {%- elif part.get('type') == 'video' -%}
-                                    {{- '<|video|>' -}}
-                                {%- endif -%}
-                            {%- endfor -%}
-                        {%- else -%}
-                            {{- format_tool_response_block(ns_tname.name, tool_body) -}}
-                        {%- endif -%}
-                        {%- set ns_tr_out.flag = true -%}
-                        {%- set ns.prev_message_type = 'tool_response' -%}
-                    {%- endif -%}
-                {%- endfor -%}
-            {%- endif -%}
-
-            {%- set captured_content -%}
-            {%- if message.get('content') is string -%}
-                {%- if role == 'model' -%}
-                    {{- strip_thinking(message['content']) -}}
-                {%- else -%}
-                    {{- message['content'] | trim -}}
-                {%- endif -%}
-            {%- elif message.get('content') is sequence -%}
-                {%- for item in message['content'] -%}
-                    {%- if item.get('type') == 'text' -%}
-                        {%- if role == 'model' -%}
-                            {{- strip_thinking(item['text']) -}}
-                        {%- else -%}
-                            {{- item['text'] | trim -}}
-                        {%- endif -%}
-                    {%- elif item.get('type') in ['image', 'image_url'] -%}
-                        {{- '<|image|>' -}}
-                    {%- elif item.get('type') in ['audio', 'input_audio'] -%}
-                        {{- '<|audio|>' -}}
-                    {%- elif item.get('type') == 'video' -%}
-                        {{- '<|video|>' -}}
-                    {%- endif -%}
-                {%- endfor -%}
-            {%- endif -%}
-            {%- endset -%}
-
-            {{- captured_content -}}
-            {%- set has_content = captured_content | trim | length > 0 -%}
-
-        {#- Forward-scan: find next non-tool message role for continuation detection -#}
-        {%- set next_nt = namespace(role=None, found=false) -%}
-        {%- for j in range(loop.index0 + 1, loop_messages | length) -%}
-            {%- if not next_nt.found -%}
-                {%- if loop_messages[j]['role'] != 'tool' -%}
-                    {%- set next_nt.role = loop_messages[j]['role'] -%}
-                    {%- set next_nt.found = true -%}
-                {%- endif -%}
-            {%- endif -%}
-        {%- endfor -%}
-
-        {%- set continues_into_next = (
-            role == 'model'
-            and next_nt.role == 'assistant'
-            and (not message.get('tool_calls') or ns_tr_out.flag)
-        ) -%}
-
-        {%- if ns.prev_message_type == 'tool_call' and not ns_tr_out.flag -%}
-            {{- '<|tool_response>' -}}
-        {%- elif continues_into_next -%}
-        {%- elif not (ns_tr_out.flag and not has_content and not next_nt.found) -%}
-            {{- '<turn|>\n' -}}
-        {%- endif -%}
-
-    {#- Track previous non-tool role for next iteration (avoids O(n) backward scan) -#}
-    {%- set ns.prev_non_tool_role = message['role'] -%}
-    {%- endif -%}
-{%- endfor -%}
-
-{%- if add_generation_prompt -%}
-    {%- if ns.prev_message_type != 'tool_response' and ns.prev_message_type != 'tool_call' -%}
-        {{- '<|turn>model\n' -}}
-    {%- elif ns.prev_message_type == 'tool_response' and enable_thinking -%}
-        {{- '<|channel>thought\n' -}}
-    {%- endif -%}
-{%- endif -%}
+{#
+  Template: Google Gemma 4 Canonical Chat Template
+  Author: Google Gemma Engineering Team
+  Published: 2026-07-09
+  Context: Fixed tool-calling loops, turn closures, and thinking content-ordering.
+#}
+{%- macro format_parameters(properties, required, filter_keys=false) -%}
+    {%- set standard_keys = ['description', 'type', 'properties', 'required', 'nullable'] -%}
+    {%- set ns = namespace(found_first=false) -%}
+    {%- for key, value in properties | dictsort -%}
+        {%- set add_comma = false -%}
+        {%- if not filter_keys or key not in standard_keys -%}
+            {%- if ns.found_first %},{% endif -%}
+            {%- set ns.found_first = true -%}
+            {{ key }}:{
+            {%- if value['description'] -%}
+                description:<|"|>{{ value['description'] }}<|"|>
+                {%- set add_comma = true -%}
+            {%- endif -%}
+            {%- if value['type'] | upper == 'STRING' -%}
+                {%- if value['enum'] -%}
+                    {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}
+                    enum:{{ format_argument(value['enum']) }}
+                {%- endif -%}
+            {%- elif value['type'] | upper == 'ARRAY' -%}
+                {%- if value['items'] is mapping and value['items'] -%}
+                    {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}
+                    items:{
+                    {%- set ns_items = namespace(found_first=false) -%}
+                    {%- for item_key, item_value in value['items'] | dictsort -%}
+                        {%- if item_value is not none -%}
+                            {%- if ns_items.found_first %},{% endif -%}
+                            {%- set ns_items.found_first = true -%}
+                            {%- if item_key == 'properties' -%}
+                                properties:{
+                                {%- if item_value is mapping -%}
+                                    {{- format_parameters(item_value, value['items']['required'] | default([])) -}}
+                                {%- endif -%}
+                                }
+                            {%- elif item_key == 'required' -%}
+                                required:[
+                                {%- for req_item in item_value -%}
+                                    <|"|>{{- req_item -}}<|"|>
+                                    {%- if not loop.last %},{% endif -%}
+                                {%- endfor -%}
+                                ]
+                            {%- elif item_key == 'type' -%}
+                                {%- if item_value is string -%}
+                                    type:{{ format_argument(item_value | upper) }}
+                                {%- else -%}
+                                    type:{{ format_argument(item_value | map('upper') | list) }}
+                                {%- endif -%}
+                            {%- else -%}
+                                {{ item_key }}:{{ format_argument(item_value) }}
+                            {%- endif -%}
+                        {%- endif -%}
+                    {%- endfor -%}
+                    }
+                {%- endif -%}
+            {%- endif -%}
+            {%- if value['nullable'] %}
+                {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}
+                nullable:true
+            {%- endif -%}
+            {%- if value['type'] | upper == 'OBJECT' -%}
+                {%- if value['properties'] is defined and value['properties'] is mapping -%}
+                    {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}
+                    properties:{
+                    {{- format_parameters(value['properties'], value['required'] | default([])) -}}
+                    }
+                {%- elif value is mapping -%}
+                    {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}
+                    properties:{
+                    {{- format_parameters(value, value['required'] | default([]), filter_keys=true) -}}
+                    }
+                {%- endif -%}
+                {%- if value['required'] -%}
+                    {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}
+                    required:[
+                    {%- for item in value['required'] | default([]) -%}
+                        <|"|>{{- item -}}<|"|>
+                        {%- if not loop.last %},{% endif -%}
+                    {%- endfor -%}
+                    ]
+                {%- endif -%}
+            {%- endif -%}
+            {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}
+            type:<|"|>{{ value['type'] | upper }}<|"|>}
+        {%- endif -%}
+    {%- endfor -%}
+{%- endmacro -%}
+{%- macro format_function_declaration(tool_data) -%}
+    declaration:{{- tool_data['function']['name'] -}}{description:<|"|>{{- tool_data['function']['description'] -}}<|"|>
+    {%- set params = tool_data['function']['parameters'] -%}
+    {%- if params -%}
+        ,parameters:{
+        {%- if params['properties'] -%}
+            properties:{ {{- format_parameters(params['properties'], params['required']) -}} },
+        {%- endif -%}
+        {%- if params['required'] -%}
+            required:[
+            {%- for item in params['required'] -%}
+                <|"|>{{- item -}}<|"|>
+                {{- ',' if not loop.last -}}
+            {%- endfor -%}
+            ],
+        {%- endif -%}
+        {%- if params['type'] -%}
+            type:<|"|>{{- params['type'] | upper -}}<|"|>}
+        {%- endif -%}
+    {%- endif -%}
+    {%- if 'response' in tool_data['function'] -%}
+        {%- set response_declaration = tool_data['function']['response'] -%}
+        ,response:{
+        {%- if response_declaration['description'] -%}
+            description:<|"|>{{- response_declaration['description'] -}}<|"|>,
+        {%- endif -%}
+        {%- if response_declaration['type'] | upper == 'OBJECT' -%}
+            type:<|"|>{{- response_declaration['type'] | upper -}}<|"|>}
+        {%- endif -%}
+    {%- endif -%}
+    }
+{%- endmacro -%}
+{%- macro format_argument(argument, escape_keys=True) -%}
+    {%- if argument is none -%}
+        {{- 'null' -}}
+    {%- elif argument is string -%}
+        {{- '<|"|>' + argument + '<|"|>' -}}
+    {%- elif argument is boolean -%}
+        {{- 'true' if argument else 'false' -}}
+    {%- elif argument is mapping -%}
+        {{- '{' -}}
+        {%- set ns = namespace(found_first=false) -%}
+        {%- for key, value in argument | dictsort -%}
+            {%- if ns.found_first %},{% endif -%}
+            {%- set ns.found_first = true -%}
+            {%- if escape_keys -%}
+                {{- '<|"|>' + key + '<|"|>' -}}
+            {%- else -%}
+                {{- key -}}
+            {%- endif -%}
+            :{{- format_argument(value, escape_keys=escape_keys) -}}
+        {%- endfor -%}
+        {{- '}' -}}
+    {%- elif argument is sequence -%}
+        {{- '[' -}}
+        {%- for item in argument -%}
+            {{- format_argument(item, escape_keys=escape_keys) -}}
+            {%- if not loop.last %},{% endif -%}
+        {%- endfor -%}
+        {{- ']' -}}
+    {%- else -%}
+        {{- argument -}}
+    {%- endif -%}
+{%- endmacro -%}
+{%- macro strip_thinking(text) -%}
+    {%- set ns = namespace(result='') -%}
+    {%- for part in text.split('<channel|>') -%}
+        {%- if '<|channel>' in part -%}
+            {%- set ns.result = ns.result + part.split('<|channel>')[0] -%}
+        {%- else -%}
+            {%- set ns.result = ns.result + part -%}
+        {%- endif -%}
+    {%- endfor -%}
+    {{- ns.result | trim -}}
+{%- endmacro -%}
+
+{%- macro format_tool_response_block(tool_name, response) -%}
+    {{- '<|tool_response>' -}}
+    {%- if response is mapping -%}
+        {{- 'response:' + tool_name + '{' -}}
+        {%- for key, value in response | dictsort -%}
+            {{- key -}}:{{- format_argument(value, escape_keys=False) -}}
+            {%- if not loop.last %},{% endif -%}
+        {%- endfor -%}
+        {{- '}' -}}
+    {%- else -%}
+        {{- 'response:' + tool_name + '{value:' + format_argument(response, escape_keys=False) + '}' -}}
+    {%- endif -%}
+    {{- '<tool_response|>' -}}
+{%- endmacro -%}
+
+{#- ===== SETUP ===== -#}
+{%- set ns = namespace(prev_message_type=None, prev_non_tool_role=None) -%}
+{%- set loop_messages = messages -%}
+{%- set enable_thinking = enable_thinking | default(false) -%}
+{%- set preserve_thinking = preserve_thinking | default(false) -%}
+{{- bos_token -}}
+{#- Handle System/Tool Definitions Block -#}
+{%- if enable_thinking or tools or (messages and messages[0]['role'] in ['system', 'developer']) -%}
+    {{- '<|turn>system\n' -}}
+    {#- Inject Thinking token at the very top of the FIRST system turn -#}
+    {%- if enable_thinking -%}
+        {{- '<|think|>\n' -}}
+        {%- set ns.prev_message_type = 'think' -%}
+    {%- endif -%}
+    {%- if messages and messages[0]['role'] in ['system', 'developer'] -%}
+        {%- if messages[0]['content'] is string -%}
+            {{- messages[0]['content'] | trim -}}
+        {%- elif messages[0]['content'] is sequence -%}
+            {%- for item in messages[0]['content'] -%}
+                {{- item['text'] | trim + ' '-}}
+            {%- endfor -%}
+        {%- endif -%}
+        {%- set loop_messages = messages[1:] -%}
+    {%- endif -%}
+    {%- if tools -%}
+        {%- for tool in tools %}
+            {{- '<|tool>' -}}
+            {{- format_function_declaration(tool) | trim -}}
+            {{- '<tool|>' -}}
+        {%- endfor %}
+        {%- set ns.prev_message_type = 'tool' -%}
+    {%- endif -%}
+    {{- '<turn|>\n' -}}
+{%- endif %}
+
+{#- Pre-scan: find last user message index for reasoning guard -#}
+{%- set ns_turn = namespace(last_user_idx=-1) -%}
+{%- for i in range(loop_messages | length) -%}
+    {%- if loop_messages[i]['role'] == 'user' -%}
+        {%- set ns_turn.last_user_idx = i -%}
+    {%- endif -%}
+{%- endfor -%}
+
+{#- Loop through messages -#}
+{%- for message in loop_messages -%}
+    {%- if message['role'] != 'tool' -%}
+    {%- set ns.prev_message_type = None -%}
+    {%- set role = 'model' if message['role'] == 'assistant' else message['role'] -%}
+    {#- Detect continuation using tracked state — O(1) instead of O(n) backward scan -#}
+    {%- set continue_same_model_turn = (role == 'model' and ns.prev_non_tool_role == 'assistant') -%}
+    {%- if not continue_same_model_turn -%}
+        {{- '<|turn>' + role + '\n' }}
+    {%- endif -%}
+
+    {#- Render reasoning/reasoning_content as thinking channel -#}
+    {%- set thinking_text = message.get('reasoning') or message.get('reasoning_content') -%}
+    {%- set thinking_gate = (loop.index0 > ns_turn.last_user_idx) or (preserve_thinking and message.get('tool_calls')) -%}
+    {%- if thinking_text and thinking_gate -%}
+        {{- '<|channel>thought\n' + thinking_text + '\n<channel|>' -}}
+    {%- endif -%}
+
+            {%- if message.get('tool_calls') -%}
+                {%- for tool_call in message.get('tool_calls') -%}
+                    {%- set function = tool_call['function'] -%}
+                    {{- '<|tool_call>call:' + function['name'] + '{' -}}
+                    {%- if function['arguments'] is mapping -%}
+                        {%- set ns_args = namespace(found_first=false) -%}
+                        {%- for key, value in function['arguments'] | dictsort -%}
+                            {%- if ns_args.found_first %},{% endif -%}
+                            {%- set ns_args.found_first = true -%}
+                            {{- key -}}:{{- format_argument(value, escape_keys=False) -}}
+                        {%- endfor -%}
+                    {%- elif function['arguments'] is none -%}
+                    {%- else -%}
+                        {{- raise_exception(
+                            "chat_template: tool_calls[].function.arguments must be a "
+                            "JSON object (mapping), not a string. Deserialize arguments "
+                            "before passing to the template."
+                        ) -}}
+                    {%- endif -%}
+                    {{- '}<tool_call|>' -}}
+                {%- endfor -%}
+                {%- set ns.prev_message_type = 'tool_call' -%}
+            {%- endif -%}
+
+            {%- set ns_tr_out = namespace(flag=false) -%}
+            {%- if message.get('tool_responses') -%}
+                {#- Legacy: tool_responses embedded on the assistant message (Google/Gemma native) -#}
+                {%- for tool_response in message.get('tool_responses') -%}
+                    {{- format_tool_response_block(tool_response['name'] | default('unknown', true), tool_response['response']) -}}
+                    {%- set ns_tr_out.flag = true -%}
+                    {%- set ns.prev_message_type = 'tool_response' -%}
+                {%- endfor -%}
+            {%- elif message.get('tool_calls') -%}
+                {#- OpenAI Chat Completions: forward-scan consecutive role:tool messages -#}
+                {%- set ns_tool_scan = namespace(stopped=false) -%}
+                {%- for k in range(loop.index0 + 1, loop_messages | length) -%}
+                    {%- if ns_tool_scan.stopped -%}
+                    {%- elif loop_messages[k]['role'] != 'tool' -%}
+                        {%- set ns_tool_scan.stopped = true -%}
+                    {%- else -%}
+                        {%- set follow = loop_messages[k] -%}
+                        {#- Resolve tool_call_id to function name -#}
+                        {%- set ns_tname = namespace(name=follow.get('name') or 'unknown') -%}
+                        {%- for tc in message.get('tool_calls') -%}
+                            {%- if tc.get('id') == follow.get('tool_call_id') -%}
+                                {%- set ns_tname.name = tc['function']['name'] -%}
+                            {%- endif -%}
+                        {%- endfor -%}
+                        {#- Handle content as string or content-parts array -#}
+                        {%- set tool_body = follow.get('content') -%}
+                        {%- if tool_body is string -%}
+                            {{- format_tool_response_block(ns_tname.name, tool_body) -}}
+                        {%- elif tool_body is sequence and tool_body is not string -%}
+                            {%- set ns_txt = namespace(s='') -%}
+                            {%- for part in tool_body -%}
+                                {%- if part.get('type') == 'text' -%}
+                                    {%- set ns_txt.s = ns_txt.s + (part.get('text') | default('')) -%}
+                                {%- endif -%}
+                            {%- endfor -%}
+                            {{- format_tool_response_block(ns_tname.name, ns_txt.s) -}}
+                            {%- for part in tool_body -%}
+                                {%- if part.get('type') in ['image', 'image_url'] -%}
+                                    {{- '<|image|>' -}}
+                                {%- elif part.get('type') in ['audio', 'input_audio'] -%}
+                                    {{- '<|audio|>' -}}
+                                {%- elif part.get('type') == 'video' -%}
+                                    {{- '<|video|>' -}}
+                                {%- endif -%}
+                            {%- endfor -%}
+                        {%- else -%}
+                            {{- format_tool_response_block(ns_tname.name, tool_body) -}}
+                        {%- endif -%}
+                        {%- set ns_tr_out.flag = true -%}
+                        {%- set ns.prev_message_type = 'tool_response' -%}
+                    {%- endif -%}
+                {%- endfor -%}
+            {%- endif -%}
+
+            {%- set captured_content -%}
+            {%- if message.get('content') is string -%}
+                {%- if role == 'model' -%}
+                    {{- strip_thinking(message['content']) -}}
+                {%- else -%}
+                    {{- message['content'] | trim -}}
+                {%- endif -%}
+            {%- elif message.get('content') is sequence -%}
+                {%- for item in message['content'] -%}
+                    {%- if item.get('type') == 'text' -%}
+                        {%- if role == 'model' -%}
+                            {{- strip_thinking(item['text']) -}}
+                        {%- else -%}
+                            {{- item['text'] | trim -}}
+                        {%- endif -%}
+                    {%- elif item.get('type') in ['image', 'image_url'] -%}
+                        {{- '<|image|>' -}}
+                    {%- elif item.get('type') in ['audio', 'input_audio'] -%}
+                        {{- '<|audio|>' -}}
+                    {%- elif item.get('type') == 'video' -%}
+                        {{- '<|video|>' -}}
+                    {%- endif -%}
+                {%- endfor -%}
+            {%- endif -%}
+            {%- endset -%}
+
+            {{- captured_content -}}
+            {%- set has_content = captured_content | trim | length > 0 -%}
+
+        {#- Forward-scan: find next non-tool message role for continuation detection -#}
+        {%- set next_nt = namespace(role=None, found=false) -%}
+        {%- for j in range(loop.index0 + 1, loop_messages | length) -%}
+            {%- if not next_nt.found -%}
+                {%- if loop_messages[j]['role'] != 'tool' -%}
+                    {%- set next_nt.role = loop_messages[j]['role'] -%}
+                    {%- set next_nt.found = true -%}
+                {%- endif -%}
+            {%- endif -%}
+        {%- endfor -%}
+
+        {%- set continues_into_next = (
+            role == 'model'
+            and next_nt.role == 'assistant'
+            and (not message.get('tool_calls') or ns_tr_out.flag)
+        ) -%}
+
+        {%- if ns.prev_message_type == 'tool_call' and not ns_tr_out.flag -%}
+            {{- '<|tool_response>' -}}
+        {%- elif continues_into_next -%}
+        {%- elif not (ns_tr_out.flag and not has_content and not next_nt.found) -%}
+            {{- '<turn|>\n' -}}
+        {%- endif -%}
+
+    {#- Track previous non-tool role for next iteration (avoids O(n) backward scan) -#}
+    {%- set ns.prev_non_tool_role = message['role'] -%}
+    {%- endif -%}
+{%- endfor -%}
+
+{%- if add_generation_prompt -%}
+    {%- if ns.prev_message_type != 'tool_response' and ns.prev_message_type != 'tool_call' -%}
+        {{- '<|turn>model\n' -}}
+    {%- elif ns.prev_message_type == 'tool_response' and enable_thinking -%}
+        {{- '<|channel>thought\n' -}}
+    {%- endif -%}
+{%- endif -%}

config.json

@@ -1,212 +1,212 @@
-{
-  "architectures": [
-    "Gemma4Model"
-  ],
-  "audio_config": {
-    "_name_or_path": "",
-    "architectures": null,
-    "attention_chunk_size": 12,
-    "attention_context_left": 13,
-    "attention_context_right": 0,
-    "attention_invalid_logits_value": -1000000000.0,
-    "attention_logit_cap": 50.0,
-    "chunk_size_feed_forward": 0,
-    "conv_kernel_size": 5,
-    "dtype": "bfloat16",
-    "gradient_clipping": 10000000000.0,
-    "hidden_act": "silu",
-    "hidden_size": 1024,
-    "id2label": {
-      "0": "LABEL_0",
-      "1": "LABEL_1"
-    },
-    "initializer_range": 0.02,
-    "is_encoder_decoder": false,
-    "label2id": {
-      "LABEL_0": 0,
-      "LABEL_1": 1
-    },
-    "model_type": "gemma4_audio",
-    "num_attention_heads": 8,
-    "num_hidden_layers": 12,
-    "output_attentions": false,
-    "output_hidden_states": false,
-    "output_proj_dims": 1536,
-    "problem_type": null,
-    "residual_weight": 0.5,
-    "return_dict": true,
-    "rms_norm_eps": 1e-06,
-    "subsampling_conv_channels": [
-      128,
-      32
-    ],
-    "use_clipped_linears": true
-  },
-  "audio_token_id": 258881,
-  "boa_token_id": 256000,
-  "boi_token_id": 255999,
-  "dtype": "bfloat16",
-  "eoa_token_id": 258883,
-  "eoa_token_index": 258883,
-  "eoi_token_id": 258882,
-  "eos_token_id": [
-    1,
-    106
-  ],
-  "image_token_id": 258880,
-  "initializer_range": 0.02,
-  "model_type": "gemma4",
-  "text_config": {
-    "attention_bias": false,
-    "attention_dropout": 0.0,
-    "attention_k_eq_v": false,
-    "bos_token_id": 2,
-    "dtype": "bfloat16",
-    "enable_moe_block": false,
-    "eos_token_id": 1,
-    "expert_intermediate_size": null,
-    "final_logit_softcapping": 30.0,
-    "head_dim": 256,
-    "hidden_activation": "gelu_pytorch_tanh",
-    "hidden_size": 1536,
-    "hidden_size_per_layer_input": 256,
-    "initializer_range": 0.02,
-    "intermediate_size": 6144,
-    "layer_types": [
-      "sliding_attention",
-      "sliding_attention",
-      "sliding_attention",
-      "sliding_attention",
-      "full_attention",
-      "sliding_attention",
-      "sliding_attention",
-      "sliding_attention",
-      "sliding_attention",
-      "full_attention",
-      "sliding_attention",
-      "sliding_attention",
-      "sliding_attention",
-      "sliding_attention",
-      "full_attention",
-      "sliding_attention",
-      "sliding_attention",
-      "sliding_attention",
-      "sliding_attention",
-      "full_attention",
-      "sliding_attention",
-      "sliding_attention",
-      "sliding_attention",
-      "sliding_attention",
-      "full_attention",
-      "sliding_attention",
-      "sliding_attention",
-      "sliding_attention",
-      "sliding_attention",
-      "full_attention",
-      "sliding_attention",
-      "sliding_attention",
-      "sliding_attention",
-      "sliding_attention",
-      "full_attention"
-    ],
-    "max_position_embeddings": 131072,
-    "model_type": "gemma4_text",
-    "moe_intermediate_size": null,
-    "num_attention_heads": 8,
-    "num_experts": null,
-    "num_hidden_layers": 35,
-    "num_key_value_heads": 1,
-    "num_kv_shared_layers": 20,
-    "pad_token_id": 0,
-    "per_layer_config": {
-      "04": {
-        "head_dim": 512
-      },
-      "09": {
-        "head_dim": 512
-      },
-      "14": {
-        "head_dim": 512
-      },
-      "19": {
-        "head_dim": 512
-      },
-      "24": {
-        "head_dim": 512
-      },
-      "29": {
-        "head_dim": 512
-      },
-      "34": {
-        "head_dim": 512
-      }
-    },
-    "rms_norm_eps": 1e-06,
-    "rope_parameters": {
-      "full_attention": {
-        "partial_rotary_factor": 0.25,
-        "rope_theta": 1000000.0,
-        "rope_type": "proportional"
-      },
-      "sliding_attention": {
-        "rope_theta": 10000.0,
-        "rope_type": "default"
-      }
-    },
-    "sliding_window": 512,
-    "tie_word_embeddings": true,
-    "top_k_experts": null,
-    "use_bidirectional_attention": null,
-    "use_cache": true,
-    "use_double_wide_mlp": true,
-    "vocab_size": 262156,
-    "vocab_size_per_layer_input": 262156
-  },
-  "tie_word_embeddings": true,
-  "transformers_version": "5.17.0",
-  "video_token_id": 258884,
-  "vision_config": {
-    "_name_or_path": "",
-    "architectures": null,
-    "attention_bias": false,
-    "attention_dropout": 0.0,
-    "chunk_size_feed_forward": 0,
-    "default_output_length": 280,
-    "dtype": "bfloat16",
-    "global_head_dim": 64,
-    "head_dim": 64,
-    "hidden_activation": "gelu_pytorch_tanh",
-    "hidden_size": 768,
-    "id2label": {
-      "0": "LABEL_0",
-      "1": "LABEL_1"
-    },
-    "initializer_range": 0.02,
-    "intermediate_size": 3072,
-    "is_encoder_decoder": false,
-    "label2id": {
-      "LABEL_0": 0,
-      "LABEL_1": 1
-    },
-    "max_position_embeddings": 131072,
-    "model_type": "gemma4_vision",
-    "num_attention_heads": 12,
-    "num_hidden_layers": 16,
-    "num_key_value_heads": 12,
-    "output_attentions": false,
-    "output_hidden_states": false,
-    "patch_size": 16,
-    "pooling_kernel_size": 3,
-    "position_embedding_size": 10240,
-    "problem_type": null,
-    "return_dict": true,
-    "rms_norm_eps": 1e-06,
-    "rope_parameters": {
-      "rope_theta": 100.0,
-      "rope_type": "axial"
-    },
-    "standardize": false,
-    "use_clipped_linears": true
-  },
-  "vision_soft_tokens_per_image": 280
-}
+{
+  "architectures": [
+    "Gemma4Model"
+  ],
+  "audio_config": {
+    "_name_or_path": "",
+    "architectures": null,
+    "attention_chunk_size": 12,
+    "attention_context_left": 13,
+    "attention_context_right": 0,
+    "attention_invalid_logits_value": -1000000000.0,
+    "attention_logit_cap": 50.0,
+    "chunk_size_feed_forward": 0,
+    "conv_kernel_size": 5,
+    "dtype": "bfloat16",
+    "gradient_clipping": 10000000000.0,
+    "hidden_act": "silu",
+    "hidden_size": 1024,
+    "id2label": {
+      "0": "LABEL_0",
+      "1": "LABEL_1"
+    },
+    "initializer_range": 0.02,
+    "is_encoder_decoder": false,
+    "label2id": {
+      "LABEL_0": 0,
+      "LABEL_1": 1
+    },
+    "model_type": "gemma4_audio",
+    "num_attention_heads": 8,
+    "num_hidden_layers": 12,
+    "output_attentions": false,
+    "output_hidden_states": false,
+    "output_proj_dims": 1536,
+    "problem_type": null,
+    "residual_weight": 0.5,
+    "return_dict": true,
+    "rms_norm_eps": 1e-06,
+    "subsampling_conv_channels": [
+      128,
+      32
+    ],
+    "use_clipped_linears": true
+  },
+  "audio_token_id": 258881,
+  "boa_token_id": 256000,
+  "boi_token_id": 255999,
+  "dtype": "bfloat16",
+  "eoa_token_id": 258883,
+  "eoa_token_index": 258883,
+  "eoi_token_id": 258882,
+  "eos_token_id": [
+    1,
+    106
+  ],
+  "image_token_id": 258880,
+  "initializer_range": 0.02,
+  "model_type": "gemma4",
+  "text_config": {
+    "attention_bias": false,
+    "attention_dropout": 0.0,
+    "attention_k_eq_v": false,
+    "bos_token_id": 2,
+    "dtype": "bfloat16",
+    "enable_moe_block": false,
+    "eos_token_id": 1,
+    "expert_intermediate_size": null,
+    "final_logit_softcapping": 30.0,
+    "head_dim": 256,
+    "hidden_activation": "gelu_pytorch_tanh",
+    "hidden_size": 1536,
+    "hidden_size_per_layer_input": 256,
+    "initializer_range": 0.02,
+    "intermediate_size": 6144,
+    "layer_types": [
+      "sliding_attention",
+      "sliding_attention",
+      "sliding_attention",
+      "sliding_attention",
+      "full_attention",
+      "sliding_attention",
+      "sliding_attention",
+      "sliding_attention",
+      "sliding_attention",
+      "full_attention",
+      "sliding_attention",
+      "sliding_attention",
+      "sliding_attention",
+      "sliding_attention",
+      "full_attention",
+      "sliding_attention",
+      "sliding_attention",
+      "sliding_attention",
+      "sliding_attention",
+      "full_attention",
+      "sliding_attention",
+      "sliding_attention",
+      "sliding_attention",
+      "sliding_attention",
+      "full_attention",
+      "sliding_attention",
+      "sliding_attention",
+      "sliding_attention",
+      "sliding_attention",
+      "full_attention",
+      "sliding_attention",
+      "sliding_attention",
+      "sliding_attention",
+      "sliding_attention",
+      "full_attention"
+    ],
+    "max_position_embeddings": 131072,
+    "model_type": "gemma4_text",
+    "moe_intermediate_size": null,
+    "num_attention_heads": 8,
+    "num_experts": null,
+    "num_hidden_layers": 35,
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-{
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-  "boi_token": "<|image>",
-  "bos_token": "<bos>",
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+  "eoa_token": "<audio|>",
+  "eoc_token": "<channel|>",
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+    "boa_token": "<|audio>",
+    "boi_token": "<|image>",
+    "eoa_token": "<audio|>",
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+    "stc_token": "<|tool_call>",
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+    "str_token": "<|tool_response>",
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+  "response_schema": {
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+        "type": "string"
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+      "role": {
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+      "thinking": {
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+      "content": {
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+      "thinking": {
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+        "content": "text",
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+      "tool_calls": {
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+        "content": "json",
+        "content_args": {
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+}