code: def test_tensorflow_sigmoid(
      *,
      dtype_and_x,
      on_device,
      fn_tree,
      frontend,
      test_flags,
      backend_fw,
  ):
      input_dtype, x = dtype_and_x
      helpers.test_frontend_function(
          input_dtypes=input_dtype,
          backend_to_test=backend_fw,
          frontend=frontend,
          test_flags=test_flags,
          fn_tree=fn_tree,
          on_device=on_device,
          rtol=1e-2,
          atol=1e-2,
          x=x[0],
      )
  
imports: from hypothesis import strategies
  from types import SimpleNamespace
  import sys
  import ivy
  import ivy_tests.test_ivy.helpers
  from ivy_tests.test_ivy.helpers import handle_frontend_test
  from typing import Optional
label_desc: Use image node_id 12 for calling a global function with example usage: test_tensorflow_sigmoid() without return types