def get_allowed_operations(resource, subresouce_path):
    """Helper function to get the HTTP allowed methods.

    :param resource: ResourceBase instance from which the path is loaded.
    :param subresource_path: JSON field to fetch the value from.
            Either a string, or a list of strings in case of a nested field.
    :returns: A list of allowed HTTP methods.
    """
    uri = get_subresource_path_by(resource, subresouce_path)
    response = resource._conn.get(path=uri)
    return response.headers['Allow']
Helper function to get the HTTP allowed methods.

    :param resource: ResourceBase instance from which the path is loaded.
    :param subresource_path: JSON field to fetch the value from.
            Either a string, or a list of strings in case of a nested field.
    :returns: A list of allowed HTTP methods.