Dart APIunself_componentUnAppPageisImmersive isImmersive property Null safety bool isImmersive final Implementation final bool isImmersive; unself_component unself_component UnAppPage isImmersive property UnAppPage class Constructors UnAppPage Properties description hashCode implyLeading isImmersive key leading name runtimeType slivers trailing Methods build createElement debugDescribeChildren debugFillProperties noSuchMethod toDiagnosticsNode toString toStringDeep toStringShallow toStringShort Operators operator ==