docs: def get(property_name):
      """
      Returns the value of the specified configuration property.
      Property values stored in the user configuration file take
      precedence over values stored in the system configuration
      file.
  
      :param property_name: The name of the property to retrieve.
      :return: The value of the property.
      """
      config = _read_config(_USER_CONFIG_FILE)
      section = _MAIN_SECTION_NAME
      try:
          property_value = config.get(section, property_name)
      except (NoOptionError, NoSectionError) as error:
  
          # Try the system config file
          try:
              config = _read_config(_SYSTEM_CONFIG_FILE)
              property_value = config.get(section, property_name)
          except (NoOptionError, NoSectionError) as error:
              raise NoConfigOptionError(error)
  
      return property_value