Return low-level information about an exec command.

        Args:
            exec_id (str): ID of the exec instance

        Returns:
            (dict): Dictionary of values returned by the endpoint.

        Raises:
            :py:class:`docker.errors.APIError`
                If the server returns an error.

def exec_inspect(self, exec_id):
        """
        Return low-level information about an exec command.

        Args:
            exec_id (str): ID of the exec instance

        Returns:
            (dict): Dictionary of values returned by the endpoint.

        Raises:
            :py:class:`docker.errors.APIError`
                If the server returns an error.
        """
        if isinstance(exec_id, dict):
            exec_id = exec_id.get('Id')
        res = self._get(self._url("/exec/{0}/json", exec_id))
        return self._result(res, True)