whenOrNull<TResult extends Object?> method Null safety

TResult? whenOrNull<TResult extends Object?>(
  1. {TResult? setThemeMode(
    1. ThemeMode themeMode
    )?}
)
inherited

Implementation

@optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>({
  TResult? Function(ThemeMode themeMode)? setThemeMode,
}) =>
    throw _privateConstructorUsedError;