Method __init__

awscli/botocore/credentials.py:855–907

:type client_creator: callable :param client_creator: A callable that creates a client taking arguments like ``Session.create_client``. :type source_credentials: Credentials :param source_credentials: The credentials to use to create the clie

(
        self,
        client_creator,
        source_credentials,
        role_arn,
        extra_args=None,
        mfa_prompter=None,
        cache=None,
        expiry_window_seconds=None,
    )

class AssumeRoleCredentialFetcher(BaseAssumeRoleCredentialFetcher):
    def __init__(
        self,
        client_creator,
        source_credentials,
        role_arn,
        extra_args=None,
        mfa_prompter=None,
        cache=None,
        expiry_window_seconds=None,
    ):
        """
        :type client_creator: callable
        :param client_creator: A callable that creates a client taking
            arguments like ``Session.create_client``.

        :type source_credentials: Credentials
        :param source_credentials: The credentials to use to create the
            client for the call to AssumeRole.

        :type role_arn: str
        :param role_arn: The ARN of the role to be assumed.

        :type extra_args: dict
        :param extra_args: Any additional arguments to add to the assume
            role request using the format of the botocore operation.
            Possible keys include, but may not be limited to,
            DurationSeconds, Policy, SerialNumber, ExternalId and
            RoleSessionName.

        :type mfa_prompter: callable
        :param mfa_prompter: A callable that returns input provided by the
            user (i.e raw_input, getpass.getpass, etc.).

        :type cache: dict
        :param cache: An object that supports ``__getitem__``,
            ``__setitem__``, and ``__contains__``.  An example of this is
            the ``JSONFileCache`` class in aws-cli.

        :type expiry_window_seconds: int
        :param expiry_window_seconds: The amount of time, in seconds,
        """
        self._source_credentials = source_credentials
        self._mfa_prompter = mfa_prompter
        if self._mfa_prompter is None:
            self._mfa_prompter = getpass.getpass

        super().__init__(
            client_creator,
            role_arn,
            extra_args=extra_args,
            cache=cache,
            expiry_window_seconds=expiry_window_seconds,
        )

    def _get_credentials(self):
        """Get credentials by calling assume role."""