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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def GetParserAndPluginNames(cls, parser_filter_expression=None):
 """Retrieves the parser and parser plugin names. Args: parser_filter_expression (Optional[str]):
 parser filter expression, where None represents all parsers and plugins. Returns: list[str]: parser and parser plugin names. """

    parser_and_plugin_names = []
    for parser_name, parser_class in cls.GetParsers(
        parser_filter_expression=parser_filter_expression):
      parser_and_plugin_names.append(parser_name)

      if parser_class.SupportsPlugins():
        for plugin_name, _ in parser_class.GetPlugins():
          parser_and_plugin_names.append(
              '{0:s}/{1:s}'.format(parser_name, plugin_name))

    return parser_and_plugin_names