code: def tag(self):
      image_name = self.image_name
      full_image_name = "{}/{}".format(self.registry, self.image_name)
  
      self.docker_tag(image_name, full_image_name)
  
      self.full_image_name = full_image_name
      return full_image_name
  
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 2 for calling the AWSImageBuilder obj's underlying member method code with example usage: obj.tag() and returns: full_image_name