Convert row to BigQuery

def convert_row(self, row, schema, fallbacks):
        """Convert row to BigQuery
        """
        for index, field in enumerate(schema.fields):
            value = row[index]
            if index in fallbacks:
                value = _uncast_value(value, field=field)
            else:
                value = field.cast_value(value)
            row[index] = value
        return row