def list_entity_types(namespace, workspace):
    """List the entity types present in a workspace.

    Args:
        namespace (str): project to which workspace belongs
        workspace (str): Workspace name

    Swagger:
        https://api.firecloud.org/#!/Entities/getEntityTypes
    """
    headers = _fiss_agent_header({"Content-type":  "application/json"})
    uri = "workspaces/{0}/{1}/entities".format(namespace, workspace)
    return __get(uri, headers=headers)
List the entity types present in a workspace.

    Args:
        namespace (str): project to which workspace belongs
        workspace (str): Workspace name

    Swagger:
        https://api.firecloud.org/#!/Entities/getEntityTypes