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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_bios_hash_password(self, bios_password):
 """Get the hashed BIOS password."""

        request_headers = {}
        if bios_password:
            bios_password_hash = hashlib.sha256((bios_password.encode()).
                                                hexdigest().upper())
            request_headers['X-HPRESTFULAPI-AuthToken'] = bios_password_hash
        return request_headers