code: def libvlc_vlm_get_media_instance_position(p_instance, psz_name, i_instance):
      '''Get vlm_media instance position by name or instance id.
      @param p_instance: a libvlc instance.
      @param psz_name: name of vlm media instance.
      @param i_instance: instance id.
      @return: position as float or -1. on error.
      '''
      f = _Cfunctions.get('libvlc_vlm_get_media_instance_position', None) or \
          _Cfunction('libvlc_vlm_get_media_instance_position', ((1,), (1,), (1,),), None,
                      ctypes.c_float, Instance, ctypes.c_char_p, ctypes.c_int)
      return f(p_instance, psz_name, i_instancef libvlc_vlm_get_media_instance_position(p_instance, psz_name, i_instance):
      '''Get vlm_media instance position by name or instance id.
      @param p_instance: a libvlc instance.
      @param psz_name: name of vlm media instance.
      @param i_instance: instance id.
      @return: position as float or -1. on error.
      '''
      f = _Cfunctions.get('libvlc_vlm_get_media_instance_position', None) or \
          _Cfunction('libvlc_vlm_get_media_instance_position', ((1,), (1,), (1,),), None,
                      ctypes.c_float, Instance, ctypes.c_char_p, ctypes.c_int)
      return f(p_instance, psz_name, i_instance)
docs: Get vlm_media instance position by name or instance id.
      @param p_instance: a libvlc instance.
      @param psz_name: name of vlm media instance.
      @param i_instance: instance id.
      @return: position as float or -1. on error.