Query DynamoDb python multiple conditions with reduce

Question

I'm trying to make a filter expression with several keys and I don't suceed to do it, do you have any clue whats going on?

My actual code is this one:

        query_args = {
                'IndexName': 'ByDateIndex',
                'KeyConditionExpression': And(
                            Key('param1').eq(params.get('param1')),
                            Key('date').between(params.get('date1'), params.get('date2'))
                        )
                'FilterExpression': And(
                            reduce(Or, ([Key('param2').eq(val) for val in params.get('param2')])),
                            reduce(Or, ([Key('param3').eq(val) for val in params.get('param3')])),
                            reduce(Or, ([Key('param4').eq(val) for val in params.get('param4')]))
                        )
            }

Then it seems impossible to query the data.

Thank you in advance, Best regards.