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4ff79c6 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | # SPDX-FileCopyrightText: 2022-present deepset GmbH <info@deepset.ai>
#
# SPDX-License-Identifier: Apache-2.0
from typing import List
from haystack.core.component import component
from haystack.core.component.types import Variadic
@component
class StringJoiner:
@component.output_types(output=str)
def run(self, input_str: Variadic[str]):
"""
Take strings from multiple input nodes and join them into a single one returned in output.
Since `input_str` is Variadic, we know we'll receive a List[str].
"""
return {"output": " ".join(input_str)}
@component
class StringListJoiner:
@component.output_types(output=str)
def run(self, inputs: Variadic[List[str]]):
"""
Take list of strings from multiple input nodes and join them into a single one returned in output.
Since `input_str` is Variadic, we know we'll receive a List[List[str]].
"""
retval: List[str] = []
for list_of_strings in inputs:
retval += list_of_strings
return {"output": retval}
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