code: def test_shared_returns_section(self):
      class A(SharedDocs):
          """
          A class
  
          Returns
          -------
          int
              Add two number together
          """
  
      class B(A):
          """
          B class
  
          Returns
          -------
          {A.Returns}
          """
  
          expected_doc = """
              B class
  
              Returns
              -------
              int
                  Add two number together
              """
  
      self.assertEqual(B.__doc__, B.expected_doc)
  
imports: from neupy.core.docs import SharedDocs, shared_docs, parse_variables_from_docs
  from base import BaseTestCase
label_desc: Use image node_id 2 for calling the SharedDocsParseSectionsTestCase obj's underlying member method code with example usage: obj.test_shared_returns_section() without return types