code: func GetLocalSigningIdentityOrPanic() msp.SigningIdentity {
  	id, err := GetLocalMSP().GetDefaultSigningIdentity()
  	if err != nil {
  		mspLogger.Panicf("Failed getting local signing identity [%+v]", err)
  	}
  	return id
  }
docs: // GetLocalSigningIdentityOrPanic returns the local signing identity or panic in case
  // or error