docstr: This function is called when Fiber wants to create a new Process.
docstr_tok: ["This","function","is","called","when","Fiber","wants","to","create","a","new","Process","."]
code: def create_job(self, job_spec):
      """This function is called when Fiber wants to create a new Process."""
      raise NotImplementedError
  
imports: import enum
label_desc: Use image node_id 2 for calling the Backend obj's underlying member method code with example usage: obj.create_job(job_spec) without return types