code: def _xml_update_modules(self, xmldict, modules):
          
          for kdecor in xmldict:
              modname, memname = kdecor.split(".")
              if modname in modules:
                  module = modules[modname]
                  #We only need to check the members, types and executables
                  memname = memname.lower()
                  if memname in module.members:
                      docs = self.to_doc(xmldict[kdecor], modname)
                      self.process_memberdocs(docs, module)
                  elif memname in module.types:
                      member = module.types[memname]
                      docs = self.to_doc(xmldict[kdecor], memname)
                      member.docstring.extend(docs)
                  elif memname in module.executables:
                      member = module.executables[memname]
                      docs = self.to_doc(xmldict[kdecor], memname)
                      self.process_execdocs(docs, member, kdecor)
                  else:
                      msg.warn("orphaned docstring. No member {} in module {}.".format(
                          memname, modname))
              else:
                  msg.warn("orphaned docstring from XML docfile for {}".format(kdecor))
docs: Updates the docstrings in the specified modules by looking for
          docstrings in the xmldict.