code: def dump(self):
          
          for modpath in sorted(self.map):
              title = 'Imports in %s' % modpath
              print('\n' + title + '\n' + '-'*len(title))
              for name, value in sorted(self.map.get(modpath, {}).items()):
                  print('  %s -> %s' % (name, ', '.join(sorted(value))))
docs: Prints out the contents of the import map.