Need Annotation based AppSync schema generation

[joshiatxcira]

In one of our upcoming projects, my team is going to use CDK TypeScript, AppSync, nodeJS Lambda, TypeORM as Layer and Provisioned Aurora as the tech stack.
At the time of POC, we created
(1) AppSync schema using code-first approach,
(2) TypeORM entities using annotations
(3) connected lambda to database using TypeORM repository commands

One of the observations was redundancy in the declared schema/entity fields.
Example

// This is TypeORM entity
@Entity()
export class Rate {
  @Column()
  name: string;
  @Column({ type: "int" })
  value: number;
}

// This is code first ObjectType creation. 
new ObjectType(`Rate`, {
    definition: {
      name: STRING({ isRequired: true }),
      value: INT({ isRequired: true }),
    },
    directives: [DIRECTIVE_API_KEY]
  })

Notice duplication of Rate object and member fields above. For each new field added to TypeORM Rate entity, we need to add it to the ObjectType created below.

Question: Is it possible to generate AppSync schema using annotations? Something like below

// TypeORM entity that generates AppSync schema using annotation
@Entity()
@ObjectType()
export class Rate {
  @Column()
  @Field(type => String)
  name: string;

  @Column({ type: "int" })
  @Field(type => Int)
  value: number;
}

I took above example from TypeGraphQL that allows creation of annotation based Apollo GraphQL schema. My initial analysis suggests, I cannot use the same library to generate AppSync schema.
Please let me know if any library/application exists that will allow me to generate AppSync schema using annotations.

Thanks.