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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 VerifyStructure(self, parser_mediator, lines):
 """Verifies that this is a bash history file. Args: parser_mediator (ParserMediator):
 mediates interactions between parsers and other components, such as storage and dfvfs. lines (str):
 one or more lines from the text file. Returns: bool: True if this is the correct parser, False otherwise. """

    match_generator = self._VERIFICATION_GRAMMAR.scanString(lines, maxMatches=1)
    return bool(list(match_generator))