class_docstr: Gather ids referenced by a node and not declared locally.
class_docstr_tok: ["Gather","ids","referenced","by","a","node","and","not","declared","locally","."]
code: def visit_Assign(self, node):
      # order matter as an assignation
      # is evaluated before being assigned
      md.visit(self, node)
      self.visit(node.value)
      for target in node.targets:
          self.visit(target)
  
imports: from pythran.analyses.globals_analysis import Globals
  from pythran.analyses.locals_analysis import Locals
  from pythran.passmanager import NodeAnalysis
  import pythran.metadata
  import gast
label_desc: Use image node_id 5 for calling the ImportedIds obj's underlying member method code with example usage: obj.visit_Assign(node) without return types