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API > API/Runtime > API/Runtime/Core > API/Runtime/Core/IO > API/Runtime/Core/IO/TOptional
References
| Module | Core |
| Header | /Engine/Source/Runtime/Core/Public/Misc/Optional.h |
| Include | #include "Misc/Optional.h" |
bool IsSet&40;&41; const
true when the value is meaningful; false if calling GetValue() is undefined.