def transform_describe(self, node, describes, context_variable):
body = self.transform_describe_body(node.body, context_variable)<EOL>return ast.ClassDef(<EOL>name="<STR_LIT>" + describes.title(),<EOL>bases=[ast.Name(id="<STR_LIT>", ctx=ast.Load())],<EOL>keywords=[],<EOL>starargs=None,<EOL>kwargs=None,<EOL>body=list(body),<EOL>decorator_list=[],<EOL>)<EOL>
Transform a describe node into a ``TestCase``.

``node`` is the node object.
``describes`` is the name of the object being described.
``context_variable`` is the name bound in the context manager (usually
"it").