class_docstr: Internal module implementation interface.
docstr: Resolves a signature name.
docstr_tok: ["Resolves","a","signature","name","."]
code: def get_signature_name(self, signature):
      """Resolves a signature name."""
      if not signature:
          return "default"
      return signature
  
imports: import abc
label_desc: Use image node_id 2 for calling the ModuleImpl obj's underlying member method code with example usage: obj.get_signature_name(signature) and returns: signature, str