Method mutation

packages/jstack/src/server/procedure.ts:254–266

(
    handler: ({
      ctx,
      c,
      input,
    }: {
      ctx: Ctx
      c: ContextWithSuperJSON<E>
      input: InputSchema extends ZodTypeAny ? z.infer<InputSchema> : void
    }) => Return,
  )

  }

  mutation<Return extends OptionalPromise<ResponseType<any>>>(
    handler: ({
      ctx,
      c,
      input,
    }: {
      ctx: Ctx
      c: ContextWithSuperJSON<E>
      input: InputSchema extends ZodTypeAny ? z.infer<InputSchema> : void
    }) => Return,
  ): PostOperation<InputSchema, Return, E> {
    return this.post(handler)
  }

  ws(
    handler: ({