code: def install_json_schema(self):
          
          if self._install_json_schema is None and self.install_json_schema_file is not None:
              # remove old schema file
              if os.path.isfile('tcex_json_schema.json'):
                  # this file is now part of tcex.
                  os.remove('tcex_json_schema.json')
  
              if os.path.isfile(self.install_json_schema_file):
                  with open(self.install_json_schema_file) as fh:
                      self._install_json_schema = json.load(fh)
          return self._install_json_schema
docs: Load install.json schema file.