code: def push(self):
      sp.check_call(
          "docker push {}".format(self.full_image_name),
          shell=True,
      )
  
imports: import os
  import json
  import subprocess
  from pathlib import Path
  import click
  import fiber
  import fiber.core
  from fiber.core import ProcessStatus
label_desc: Use image node_id 5 for calling the DockerImageBuilder obj's underlying member method code with example usage: obj.push() without return types