export const SIGNATURE_SOURCE = [
  "import { A } from './a';",
  '',
  'export interface Foo {',
  '  id: string;',
  '}',
  '',
  'export async function doThing(',
  '  a: string,',
  '): Promise<void> {',
  '  const secretLocal = 1;',
  '  return use(secretLocal);',
  '}',
  '',
].join('\n');
