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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 convert_row(self, keyed_row, schema, fallbacks):
 """Convert row to SQL """

        for key, value in list(keyed_row.items()):
            field = schema.get_field(key)
            if not field:
                del keyed_row[key]
            if key in fallbacks:
                value = _uncast_value(value, field=field)
            else:
                value = field.cast_value(value)
            keyed_row[key] = value
        return keyed_row