code: def clamped(values, output_min=0, output_max=1):
      
      values = _normalize(values)
      if output_min >= output_max:
          raise ValueError('output_min must be smaller than output_max')
      for v in values:
          yield min(max(v, output_min), output_max)
docs: Returns *values* clamped from *output_min* to *output_max*, i.e. any items
      less than *output_min* will be returned as *output_min* and any items
      larger than *output_max* will be returned as *output_max* (these default to
      0 and 1 respectively). For example::
  
          from gpiozero import PWMLED, MCP3008
          from gpiozero.tools import clamped
          from signal import pause
  
          led = PWMLED(4)
          pot = MCP3008(channel=0)
  
          led.source = clamped(pot, 0.5, 1.0)
  
          pause()