amazon web services – Need help writing mutation on AWS AppSync (GraphQL)

I have created this schema on GraphQL:

type Bird @model{
    id: ID!
    name: String!
    description: String!
    images: [String]
}

type Course @model{
    id: ID!
    name: String!
    description: String!
    image: String
    birds: [Bird] @hasMany
}

Now I want to write the mutation for createCourse. I don’t know how to include the array of Bird object in my course.

I don’t know how to add Bird object here:

mutation MyMutation2 {
  createCourse(input: {image: "", name: "", description: ""})
}