code: def create_repo_if_needed(self):
      if self.need_new_repo():
          sp.check_call(
              "aws ecr create-repository --region {} --repository-name {}".format(
                  self.region, self.image_base_name
              ),
              shell=True,
          )
  
      return
  
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 4 for calling the AWSImageBuilder obj's underlying member method code with example usage: obj.create_repo_if_needed() without return types