code: def load_api_folder(api_folder_path):
      
      api_definition_mapping = {}
  
      api_items_mapping = load_folder_content(api_folder_path)
  
      for api_file_path, api_items in api_items_mapping.items():
          # TODO: add JSON schema validation
          if isinstance(api_items, list):
              for api_item in api_items:
                  key, api_dict = api_item.popitem()
                  api_id = api_dict.get("id") or api_dict.get("def") or api_dict.get("name")
                  if key != "api" or not api_id:
                      raise exceptions.ParamsError(
                          "Invalid API defined in {}".format(api_file_path))
  
                  if api_id in api_definition_mapping:
                      raise exceptions.ParamsError(
                          "Duplicated API ({}) defined in {}".format(api_id, api_file_path))
                  else:
                      api_definition_mapping[api_id] = api_dict
  
          elif isinstance(api_items, dict):
              if api_file_path in api_definition_mapping:
                  raise exceptions.ParamsError(
                      "Duplicated API defined: {}".format(api_file_path))
              else:
                  api_definition_mapping[api_file_path] = api_items
  
      return api_definition_mapping
docs: load api definitions from api folder.
  
      Args:
          api_folder_path (str): api files folder.
  
              api file should be in the following format:
              [
                  {
                      "api": {
                          "def": "api_login",
                          "request": {},
                          "validate": []
                      }
                  },
                  {
                      "api": {
                          "def": "api_logout",
                          "request": {},
                          "validate": []
                      }
                  }
              ]
  
      Returns:
          dict: api definition mapping.
  
              {
                  "api_login": {
                      "function_meta": {"func_name": "api_login", "args": [], "kwargs": {}}
                      "request": {}
                  },
                  "api_logout": {
                      "function_meta": {"func_name": "api_logout", "args": [], "kwargs": {}}
                      "request": {}
                  }
              }