code: def delete_entity_type(namespace, workspace, etype, ename):
      
  
      uri = "workspaces/{0}/{1}/entities/delete".format(namespace, workspace)
      if isinstance(ename, string_types):
          body = [{"entityType":etype, "entityName":ename}]
      elif isinstance(ename, Iterable):
          body = [{"entityType":etype, "entityName":i} for i in ename]
  
      return __post(uri, json=body)
docs: Delete entities in a workspace.
  
      Note: This action is not reversible. Be careful!
  
      Args:
          namespace (str): project to which workspace belongs
          workspace (str): Workspace name
          etype (str): Entity type
          ename (str, or iterable of str): unique entity id(s)
  
      Swagger:
          https://api.firecloud.org/#!/Entities/deleteEntities