class_docstr: Base class to add information on a node to improve code generation. 
class_docstr_tok: ["Base","class","to","add","information","on","a","node","to","improve","code","generation","."]
docstr: Enable iteration over every metadata informations. 
docstr_tok: ["Enable","iteration","over","every","metadata","informations","."]
code: def __iter__(self):
      """Enable iteration over every metadata informations."""
      return iter(self.data)
  
file_path: catboost/contrib/python/pythran/pythran/metadata.py
imports: from gast import AST
label_desc: Use image node_id 2 for calling the Metadata obj's underlying member method code with example usage: obj.__iter__() and returns: iter