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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 | # SPDX-FileCopyrightText: 2022-present deepset GmbH <info@deepset.ai>
#
# SPDX-License-Identifier: Apache-2.0
from typing import List, Union
from haystack.core.component import component
@component
class Concatenate:
"""
Concatenates two values
"""
@component.output_types(value=List[str])
def run(self, first: Union[List[str], str], second: Union[List[str], str]):
"""
Concatenates two values
"""
if isinstance(first, str) and isinstance(second, str):
res = [first, second]
elif isinstance(first, list) and isinstance(second, list):
res = first + second
elif isinstance(first, list) and isinstance(second, str):
res = first + [second]
elif isinstance(first, str) and isinstance(second, list):
res = [first] + second
else:
res = None
return {"value": res}
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