code: def test_categorical_skip_linear_no_shape(self):
      self.start_tests(name="categorical skip-linear empty shape")
      self.unittest(
          states=dict(
              type="float", shape=(3,), min_value=1.0, max_value=2.0
          ),
          actions=dict(type="int", num_values=4),
          policy=dict(
              network=[dict(type="dense", size=4)],
              distributions=dict(type="categorical", skip_linear=True),
          ),
      )
  
file_path: tensorforce/test/test_policies.py
imports: import unittest
  from test.unittest_base import UnittestBase
label_desc: Use image node_id 4 for calling the TestPolicies obj's underlying member method code with example usage: obj.test_categorical_skip_linear_no_shape() without return types