class_docstr: EmptyFormat:
class_docstr_tok: ["EmptyFormat",":"]
code: def to_dict(self):
      return {
          "_EMP": True,
      }
  
imports: import json
  import numpy
  from towhee.runtime.data_queue import Empty
label_desc: Use image node_id 1 for calling the EmptyFormat obj's underlying member method code with example usage: obj.to_dict() and returns: dict