code: def parallel(self):
      index = self.index
      expressions = []
      while len(expressions) == 0 or self.token("|"):
          e = self.expression()
          if not e:
              break
          expressions.append(e)
      if len(expressions) >= 2:
          return ParallelPattern(expressions)
      # No match. Reset index
      self.index = index
  
imports: import re
label_desc: Use image node_id 3 for calling the GEParser obj's underlying member method code with example usage: obj.parallel() and returns: ParallelPattern