code: func (m *KeyLevelValidationParameterManagerImpl) SetTxValidationResult(ns string, blockNum, txNum uint64, err error) {
  	vCtx := m.validationCtx.forBlock(blockNum)
  
  	// this object represents the dependency that the transaction of our caller introduces
  	dep := vCtx.getOrCreateDependencyByTxnum(txNum)
  
  	// signal the validation status of this tx
  	dep.signalValidationResult(ns, err)
  }
docs: // SetTxValidationCode implements the method of the same name of
  // the KeyLevelValidationParameterManager interface. Note that
  // this function receives a namespace argument so that it records
  // the validation result for this transaction and for this chaincode.