4054public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitBlock(this, argument); 4109public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitVariableDeclarationGroup(this, argument); 4179public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitSwitch(this, argument); 4285public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitForEachLoop(this, argument); 4377public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitForLoop(this, argument); 4489public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitForToLoop(this, argument); 4513public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitWhileLoop(this, argument); 4566public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitLabeled(this, argument); 4586public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitBranch(this, argument); 4600public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitEmpty(this, argument); 4652public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitReturn(this, argument); 4716public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitLock(this, argument); 4795public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitTry(this, argument); 4863public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitUsing(this, argument); 4914public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitExpressionStatement(this, argument); 4978public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitLocalFunction(this, argument); 4992public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitStop(this, argument); 5006public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitEnd(this, argument); 5072public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitRaiseEvent(this, argument); 5090public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitLiteral(this, argument); 5150public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitConversion(this, argument); 5223public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitInvocation(this, argument); 5290public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitArrayElementReference(this, argument); 5312public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitLocalReference(this, argument); 5331public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitParameterReference(this, argument); 5396public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitFieldReference(this, argument); 5452public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitMethodReference(this, argument); 5521public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitPropertyReference(this, argument); 5575public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitEventReference(this, argument); 5638public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitUnaryOperator(this, argument); 5716public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitBinaryOperator(this, argument); 5793public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitConditional(this, argument); 5860public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitCoalesce(this, argument); 5913public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitAnonymousFunction(this, argument); 5983public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitObjectCreation(this, argument); 6035public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitTypeParameterObjectCreation(this, argument); 6102public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitArrayCreation(this, argument); 6121public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitInstanceReference(this, argument); 6177public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitIsType(this, argument); 6229public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitAwait(this, argument); 6302public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitSimpleAssignment(this, argument); 6377public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitCompoundAssignment(this, argument); 6430public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitParenthesized(this, argument); 6495public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitEventAssignment(this, argument); 6558public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitConditionalAccess(this, argument); 6575public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitConditionalAccessInstance(this, argument); 6632public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitInterpolatedString(this, argument); 6688public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitAnonymousObjectCreation(this, argument); 6744public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitObjectOrCollectionInitializer(this, argument); 6807public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitMemberInitializer(this, argument); 6860public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitNameOf(this, argument); 6918public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitTuple(this, argument); 6976public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitDynamicMemberReference(this, argument); 7028public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitTranslatedQuery(this, argument); 7080public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitDelegateCreation(this, argument); 7098public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitDefaultValue(this, argument); 7117public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitTypeOf(this, argument); 7137public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitSizeOf(this, argument); 7189public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitAddressOf(this, argument); 7252public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitIsPattern(this, argument); 7315public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitIncrementOrDecrement(this, argument); 7367public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitThrow(this, argument); 7426public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitDeconstructionAssignment(this, argument); 7478public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitDeclarationExpression(this, argument); 7495public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitOmittedArgument(this, argument); 7557public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitFieldInitializer(this, argument); 7604public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitVariableInitializer(this, argument); 7655public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitPropertyInitializer(this, argument); 7706public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitParameterInitializer(this, argument); 7761public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitArrayInitializer(this, argument); 7829public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitVariableDeclarator(this, argument); 7910public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitVariableDeclaration(this, argument); 7971public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitArgument(this, argument); 8048public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitCatchClause(this, argument); 8122public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitSwitchCase(this, argument); 8146public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitDefaultCaseClause(this, argument); 8209public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitPatternCaseClause(this, argument); 8271public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitRangeCaseClause(this, argument); 8324public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitRelationalCaseClause(this, argument); 8375public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitSingleValueCaseClause(this, argument); 8431public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitInterpolatedStringText(this, argument); 8504public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitInterpolation(this, argument); 8566public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitConstantPattern(this, argument); 8588public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitDeclarationPattern(this, argument); 8653public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitTupleBinaryOperator(this, argument); 8720public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitMethodBodyOperation(this, argument); 8791public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitConstructorBodyOperation(this, argument); 8810public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitDiscardOperation(this, argument); 8863public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitFlowCapture(this, argument); 8885public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitFlowCaptureReference(this, argument); 8938public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitIsNull(this, argument); 8955public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitCaughtException(this, argument); 8974public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitStaticLocalInitializationSemaphore(this, argument); 9033public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitCoalesceAssignment(this, argument); 9100public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitRangeOperation(this, argument); 9157public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitReDim(this, argument); 9223public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitReDimClause(this, argument); 9299public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitRecursivePattern(this, argument); 9313public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitDiscardPattern(this, argument); 9382public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitSwitchExpression(this, argument); 9457public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitSwitchExpressionArm(this, argument); 9519public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitPropertySubpattern(this, argument); 9582public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitAggregateQuery(this, argument); 9646public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitFixed(this, argument); 9698public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitNoPiaObjectCreation(this, argument); 9717public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitPlaceholder(this, argument); 9779public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitWithStatement(this, argument); 9834public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitUsingDeclaration(this, argument); 9885public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitNegatedPattern(this, argument); 9949public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitBinaryPattern(this, argument); 9967public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitTypePattern(this, argument); 10020public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitRelationalPattern(this, argument); 10085public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitWith(this, argument); 10152public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitInterpolatedStringHandlerCreation(this, argument); 10214public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitInterpolatedStringAddition(this, argument); 10266public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitInterpolatedStringAppend(this, argument); 10286public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitInterpolatedStringHandlerArgumentPlaceholder(this, argument); 10353public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitFunctionPointerInvocation(this, argument); 10414public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitListPattern(this, argument); 10467public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitSlicePattern(this, argument); 10534public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitImplicitIndexerReference(this, argument); 10553public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitUtf8String(this, argument); 10604public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitAttribute(this, argument); 10667public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitInlineArrayAccess(this, argument); 10725public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitCollectionExpression(this, argument); 10781public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => visitor.VisitSpread(this, argument);

135public abstract TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument);

144public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default 176public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default 326public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default 408public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default 490public override TResult? Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default

27104TResult IOperation.Accept<TArgument, TResult>(OperationVisitor<TArgument, TResult> visitor, TArgument argument) where TResult : default => throw null;

26 return operation.Accept (this, argument);

11551public virtual TResult? Visit(IOperation? operation, TArgument argument) => operation is null ? default(TResult) : operation.Accept(this, argument);

75operation.Accept(this, argument);