[USTRUCT](Programming/UnrealArchitecture/Reference/Structs)(Meta=(DisplayName="Once", Keywords="FlipFlop,Toggle,Changed,Different", Varying)) struct FRigVMFunction_MathBoolOnce : public [FRigVMFunction_MathBoolBase](API\Plugins\RigVM\RigVMFunctions\Math\FRigVMFunction_MathBoolBase)