How to properly type Better Auth Server API on Fastify

  const activeOrganization = request.server.betterAuth.api.getFullOrganization({ headers });

  const activeOrganization = request.server.betterAuth.api.getFullOrganization({ headers });

Property 'getFullOrganization' does not exist on type 'InferAPI<{ readonly ok: StrictEndpoint<"/ok", { method: "GET"; metadata: { openapi: { description: string; responses: { "200": { description: string; content: { "application/json": { schema: { type: "object"; properties: { ok: { type: string; description: string; }; }; required: string[]; }; }; }; }; }; }; isAction:...'.ts(2339)

import type { Auth } from 'better-auth';
import 'fastify';

declare module 'fastify' {
  interface FastifyInstance {
    betterAuth: Auth;
  }
}

import type { Auth } from 'better-auth';
import 'fastify';

declare module 'fastify' {
  interface FastifyInstance {
    betterAuth: Auth;
  }
}