code: def format_op_fullname(op_name, model_fullname):
      if model_fullname:
          if model_fullname.endswith("/"):
              return f"{model_fullname}{op_name}"
          return f"{model_fullname}:{op_name}"
      return op_name
  
file_path: guildai/guild/commands/operations_impl.py
imports: from guild import cli
  from guild import cmd_impl_support
  from guild import flag_util
  from guild import model
  from guild import util
  from .None import models_impl
label_desc: Use image node_id 6 for calling a global function with example usage: format_op_fullname(op_name, model_fullname) and returns: op_name, model_fullname, str, op_name, model_fullname, op_name