Convert a path tuple into a full path string.

    Of the form:

        ``projects/{project_id}/databases/{database_id}/...
              documents/{document_path}``

    Args:
        client (~.firestore_v1beta1.client.Client): The client that holds
            configuration details and a GAPIC client object.
        path (Tuple[str, ...]): The components in a document path.

    Returns:
        str: The fully-qualified document path.

def _get_document_path(client, path):
    """Convert a path tuple into a full path string.

    Of the form:

        ``projects/{project_id}/databases/{database_id}/...
              documents/{document_path}``

    Args:
        client (~.firestore_v1beta1.client.Client): The client that holds
            configuration details and a GAPIC client object.
        path (Tuple[str, ...]): The components in a document path.

    Returns:
        str: The fully-qualified document path.
    """
    parts = (client._database_string, "documents") + path
    return _helpers.DOCUMENT_PATH_DELIMITER.join(parts)