django reverse_related annotate and filter

I have 2 models

class Model_one(Model):
     ...
    
class Model_two(Model):
      is_reserved = BooleanField()
      model_one = ForeignKey(Model_one, CASCADE)
      date = DatetimeField()
      reseve_num = IntegerField

How can I annotate list of objects from model_one to model_two by condition is_reserved=True and pass that annotation to ModelOneSerializer:

class ModelTwoSerialzier(ModelSerialzier):
      is_reserved = BooleanField()
      date = DatetimeField()
      reseve_num = IntegerField

class ModelOneSerializer(ModelSerialzier):
    models_two = ModelTwoSerialzier(many=True, sourse=Annotation,that I aks)