Function●Since v0.1

get_env_var

Retrieve an environment variable from a list of namespaces.

get_env_var(
  name: str,
  default: Optional[str] = None,
  *,
  namespaces: tuple = ('LANGSMITH', 'LANGCHAIN')
) -> Optional[str]

Parameters

Name	Type	Description
`name`*	`str`	The name of the environment variable.
`default`	`Optional[str]`	Default:`None` The default value to return if the environment variable is not found.
`namespaces`	`tuple`	Default:`('LANGSMITH', 'LANGCHAIN')` A tuple of namespaces to search for the environment variable. Defaults to `('LANGSMITH', 'LANGCHAINs')`.