Currently,GraphQLResolveInfo.context is being typed asAny, makingGraphQLResolveInfo a generic would give users the ability to provide their type. This is already being done inGraphQL.js

export type GraphQLFieldResolver<  TSource,  TContext,  TArgs = any,  TResult = unknown,> = (  source: TSource,  args: TArgs,  context: TContext,  info: GraphQLResolveInfo,) => TResult;

If this change will be welcome, I'd like to make a pull-request implementing it.