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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 init_genotype_file(self):
 """Resets the bed file and preps it for starting at the start of the \ genotype data Returns to beginning of file and reads the version so that it points \ to first marker's info :return: None """

        self.genotype_file.seek(0)

        buff = self.genotype_file.read(3)
        version = 0
        magic, data_format = buff.unpack("HB", version)
        return magic, data_format