System.Diagnostics.Debuggable(System.Diagnostics.DebuggableAttribute+DebuggingModes.IgnoreSymbolStoreSequencePoints) System.Runtime.CompilerServices.CompilationRelaxations(8) System.Runtime.CompilerServices.RuntimeCompatibility(WrapNonExceptionThrows=true) System.Diagnostics.Debuggable(System.Diagnostics.DebuggableAttribute+DebuggingModes.IgnoreSymbolStoreSequencePoints) System.Runtime.CompilerServices.CompilationRelaxations(8) System.Runtime.CompilerServices.RuntimeCompatibility(WrapNonExceptionThrows=true) To be added. To be added. DocTest-DropNS-classic-deletetest ExtensionMethod System.Boolean To be added. To be added.