class_docstr: FastMachine is a deterministic machine represented in a way that
  allows fast scanning.
code: def ranges_to_string(self, range_list):
      return ",".join(map(self.range_to_string, range_list))
  
imports: from __future__ import absolute_import
  import sys
  from .Transitions import TransitionMap
label_desc: Use image node_id 11 for calling the FastMachine obj's underlying member method code with example usage: obj.ranges_to_string(range_list) and returns: str