code: def _get_indicators(modules):
      
      out = []
      for obj in modules:
          for key, val in obj.__dict__.items():
              if isinstance(val, xcu.Indicator):
                  out.append(val)
  
      return out
docs: For all modules or classes listed, return the children that are instances of xclim.utils.Indicator.
  
      modules : sequence
        Sequence of modules to inspect.