node_modules/graphql/language/source.d.ts

interface Location {
  line: number;
  column: number;
}

/**
 * A representation of source input to GraphQL.
 * `name` and `locationOffset` are optional. They are useful for clients who
 * store GraphQL documents in source files; for example, if the GraphQL input
 * starts at line 40 in a file named Foo.graphql, it might be useful for name to
 * be "Foo.graphql" and location to be `{ line: 40, column: 0 }`.
 * line and column in locationOffset are 1-indexed
 */
export class Source {
  body: string;
  name: string;
  locationOffset: Location;
  constructor(body: string, name?: string, locationOffset?: Location);
}