code: def main(json_file):
      
      f = open("precache.py", "w")
      f.write("""# -*- coding: utf-8 -*-
  # Auto-generated code by cachemaker.py
  # Licensed to the Apache Software Foundation (ASF) under one
  # or more contributor license agreements.  See the NOTICE file
  # distributed with this work for additional information
  # regarding copyright ownership.  The ASF licenses this file
  # to you under the Apache License, Version 2.0 (the
  # "License"); you may not use this file except in compliance
  # with the License.  You may obtain a copy of the License at
  #
  #   http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing,
  # software distributed under the License is distributed on an
  # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  # KIND, either express or implied.  See the License for the
  # specific language governing permissions and limitations
  # under the License.""")
      f.write("\napicache = %s" % loadcache(json_file))
      f.close()
docs: cachemaker.py creates a precache datastore of all available apis of
      CloudStack and dumps the precache dictionary in an
      importable python module. This way we cheat on the runtime overhead of
      completing commands and help docs. This reduces the overall search and
      cache_miss (computation) complexity from O(n) to O(1) for any valid cmd.