code: def pip_info(self, req):
      return PipInfo(self.prefix + req, self.pip_install_urls)
  
imports: import re
  from collections import namedtuple
  import guild
  from guild.entry_point_util import EntryPointResources
label_desc: Use image node_id 2 for calling the PrefixNamespace obj's underlying member method code with example usage: obj.pip_info(req) and returns: PipInfo