class_docstr: Creates a locahost:port address, with port decided by portpicker.
class_docstr_tok: ["Creates","a","locahost",":","port","address",",","with","port","decided","by","portpicker","."]
code: def build(self) -> str:
      return self._address
  
file_path: launchpad/launchpad/address.py
imports: import abc
  import os
  import re
  from typing import Optional
  from absl import logging
  import portpicker
label_desc: Use image node_id 2 for calling the SimpleLocalAddressBuilder obj's underlying member method code with example usage: obj.build() and returns: self