Pinecone API key.
If not provided, will look for the PINECONE_API_KEY environment variable.
pinecone_api_key: SecretStr = Field(
default_factory=(secret_from_env('PINECONE_API_KEY', error_message='Pinecone API key not found. Please set the PINECONE_API_KEY environment variable or pass it via `pinecone_api_key`.')),
alias='pinecone_api_key',
validation_alias=(AliasChoices('pinecone_api_key', 'api_key'))
)