schema.py for graphene and sqlalchemy

schema.py

import graphene
from graphene_sqlalchemy import SQLAlchemyConnectionField, SQLAlchemyObjectType
from models import *

class Person(SQLAlchemyObjectType):

    class Meta:
        model = PersonModel
        interfaces = (graphene.relay.Node, )

class Article(SQLAlchemyObjectType):
  
    class Meta:
        model = ArticleModel
        interfaces = (graphene.relay.Node, )
        
class Query(graphene.ObjectType):
    
    node = graphene.relay.Node.Field()
    person = graphene.Field(Person, uuid = graphene.Int())
    
    def resolve_person(self, args, context, info):
        query = Person.get_query(context)
        uuid = args.get('uuid')
        return query.get(uuid)

schema = graphene.Schema(query=Query, types=[Person])