Export GraphQLArgs (#1118)

Author: IvanGoncharov

src/index.js

@@ -32,6 +32,7 @@
  */
 
 // The primary entry point into fulfilling a GraphQL request.
+export type { GraphQLArgs } from './graphql';
 export { graphql, graphqlSync } from './graphql';
 
 // Create and operate on GraphQL type definitions and schema.