code: func (cp *ChannelProvider) MSPVersion() msp.MSPVersion {
  	switch {
  	case cp.v13:
  		return msp.MSPv1_3
  	case cp.v11:
  		return msp.MSPv1_1
  	default:
  		return msp.MSPv1_0
  	}
  }
docs: // MSPVersion returns the level of MSP support required by this channel.