class_docstr: Identify constant expressions.
class_docstr_tok: ["Identify","constant","expressions","."]
code: def add(self, node):
      self.result.add(node)
      return True
  
file_path: pythran/pythran/analyses/static_expressions.py
imports: from pythran.passmanager import NodeAnalysis
label_desc: Use image node_id 2 for calling the StaticExpressions obj's underlying member method code with example usage: obj.add(node) and returns: True