docs: remove the extra period in docstring #27153

Job	Run time
build	11s
test-doc-imports	0s
cd ${{ matrix.job-configs.working-directory }} / make extended_tests #${{ matrix.job-configs.python-version }}	0s
cd libs/langchain / make lint #3.12	10m 15s
cd libs/langchain / make lint #3.8	33s
cd libs/partners/openai / make lint #3.8	32s
cd libs/partners/openai / make lint #3.12	44s
cd libs/partners/together / make lint #3.12	37s
cd libs/partners/together / make lint #3.8	34s
cd libs/langchain / poetry run pytest -m compile tests/integration_tests #3.12	16s
cd libs/langchain / poetry run pytest -m compile tests/integration_tests #3.8	18s
cd libs/partners/openai / poetry run pytest -m compile tests/integration_tests #3.12	23s
cd libs/partners/openai / poetry run pytest -m compile tests/integration_tests #3.8	17s
cd libs/partners/together / poetry run pytest -m compile tests/integration_tests #3.12	23s
cd libs/partners/together / poetry run pytest -m compile tests/integration_tests #3.8	19s
cd libs/langchain / dependency checks 3.12	38s
cd libs/langchain / dependency checks 3.8	35s
cd libs/partners/openai / dependency checks 3.12	35s
cd libs/partners/openai / dependency checks 3.8	34s
cd libs/partners/together / dependency checks 3.12	26s
cd libs/partners/together / dependency checks 3.8	31s
cd libs/langchain / make test #3.12	25s
cd libs/langchain / make test #3.8	25s
cd libs/partners/openai / make test #3.12	36s
cd libs/partners/openai / make test #3.8	40s
cd libs/partners/together / make test #3.12	24s
cd libs/partners/together / make test #3.8	23s
CI Success	1s
	21m 35s

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