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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 get_command_header(parser, usage_message="", usage=False):
 """ Return the command line header :param parser: :param usage_message: :param usage: :return: The command header """

    loader = template.Loader(os.path.join(
        firenado.conf.ROOT, 'management', 'templates', 'help'))
    return loader.load("header.txt").generate(
        parser=parser, usage_message=usage_message, usage=usage,
        firenado_version=".".join(map(str, firenado.__version__))).decode(
        sys.stdout.encoding)