docs: def extract(obj, pointer, bypass_ref=False):
      """Extract member or element of obj according to pointer.
  
      :param obj: the object source
      :param pointer: the pointer
      :type pointer: Pointer, str
      :param bypass_ref: bypass JSON Reference event
      :type bypass_ref: boolean
      """
  
      return Pointer(pointer).extract(obj, bypass_ref)