如何在django-graphene根模式中创建用于中继的查看器字段？

import graphene

# Step 2: Define a new GraphQL type for relay
class RelayType(graphene.ObjectType):
    field1 = graphene.String()
    field2 = graphene.Int()

# Step 3: Create a new viewer field in the root schema for relay
class RootQuery(graphene.ObjectType):
    relay_field = graphene.Field(RelayType)

    def resolve_relay_field(self, info):
        # Step 4: Implement the relay logic
        # Retrieve data from other GraphQL queries or backend services
        data = {
            'field1': 'Hello',
            'field2': 123
        }
        return RelayType(**data)

# Configure the GraphQL schema
schema = graphene.Schema(query=RootQuery)