def _GetPropertyValue(self, parser_mediator, properties, property_name):
    """Retrieves a property value.

    Args:
      parser_mediator (ParserMediator): mediates interactions between parsers
          and other components, such as storage and dfvfs.
      properties (dict[str, object]): properties.
      property_name (str): name of the property.

    Returns:
      str: property value.
    """
    property_value = properties.get(property_name, None)
    if isinstance(property_value, py2to3.BYTES_TYPE):
      try:
        # TODO: get encoding form XML metadata.
        property_value = property_value.decode('utf-8')
      except UnicodeDecodeError:
        parser_mediator.ProduceExtractionWarning(
            'unable to decode property: {0:s}'.format(property_name))

    return property_value
def _GetPropertyValue ( self , parser_mediator , properties , property_name ) : property_value = properties . get ( property_name , None ) if isinstance ( property_value , py2to3 . BYTES_TYPE ) : try : property_value = property_value . decode ( 'utf-8' ) except UnicodeDecodeError : parser_mediator . ProduceExtractionWarning ( 'unable to decode property: {0:s}' . format ( property_name ) ) return property_value
Retrieves a property value.

    Args:
      parser_mediator (ParserMediator): mediates interactions between parsers
          and other components, such as storage and dfvfs.
      properties (dict[str, object]): properties.
      property_name (str): name of the property.

    Returns:
      str: property value.