class_docstr: Walks node and collect string comments looking for OpenMP directives.
class_docstr_tok: ["Walks","node","and","collect","string","comments","looking","for","OpenMP","directives","."]
code: def visit_Expr(self, node):
      if self.isompdirective(node.value):
          self.current.append(node.value.value)
          return None
      else:
          self.attach_data(node)
          return node
  
file_path: pythran/pythran/openmp.py
imports: from pythran.passmanager import Transformation
  import pythran.metadata
  from pythran.spec import parse_pytypes
  from pythran.types.conversion import pytype_to_ctype
  from pythran.utils import isstr
  from gast import AST
  import gast
  import re
label_desc: Use image node_id 3 for calling the GatherOMPData obj's underlying member method code with example usage: obj.visit_Expr(node) and returns: None, node