code: def __call__(self, x1):
      return x1 + 2.0, x1.pad(((0, 0), (0, 1))) + 1.0
  
file_path: tinygrad/test/extra/test_export_model.py
imports: import unittest
  from extra.export_model import export_model, EXPORT_SUPPORTED_DEVICE
  from tinygrad.tensor import Tensor, Device
  import json
label_desc: Use image node_id 1 for calling the MockMultiOutputModel obj's underlying member method code with example usage: obj.__call__(x1) and returns: unknown,  unknown