chore: use bound class method style

Co-authored-by: Cristina Shaver <[email protected]>

packages/monaco-graphql/src/api.ts

@@ -1,19 +1,16 @@
 import * as languageFeatures from './languageFeatures';
-import type { DocumentNode } from 'graphql';
-import { SchemaResponse } from 'graphql-languageservice';
-
 export class MonacoGraphQLApi {
   private worker: languageFeatures.WorkerAccessor;
   constructor({ accessor }: { accessor: languageFeatures.WorkerAccessor }) {
     this.worker = accessor;
   }
 
-  async getSchema(): Promise<SchemaResponse> {
+  getSchema = async () => {
     const langWorker = await this.worker();
     return langWorker.getSchemaResponse();
-  }
-  async parse(graphqlString: string): Promise<DocumentNode> {
+  };
+  parse = async (graphqlString: string) => {
     const langWorker = await this.worker();
     return langWorker.doParse(graphqlString);
-  }
+  };
 }