Parsing Schema vs. Using Structs to define schema

Let's say that I have an existing schema:

`const Schema = '
type Gamer {
id: String!
}
type Query {
gamers: [Gamer]
}'`

If I want to use graphql-go to handle this schema, would it be best (in terms of efficiency and extensibility) to use `graphql.MustParseSchema(Schema, &Resolver{})` or to recreate the schema using the graphql-go structs to create new graphql objects?