code: def test_num_tokens_from_functions(input_functions, expected_count):
      assert (
          num_tokens_from_functions(input_functions) == expected_count
      )
  
imports: from autogen.token_count_utils import count_token, num_tokens_from_functions, token_left, percentile_used, get_max_token_limit
  import pytest
label_desc: Use image node_id 1 for calling a global function with example usage: test_num_tokens_from_functions(input_functions, expected_count) without return types