/// impls of traits that add exra enforcement on the way they're called. Useful for detecting state
/// machine errors and used in fuzz targets and tests.
#[cfg(any(test, feature = "_test_utils"))]
/// impls of traits that add exra enforcement on the way they're called. Useful for detecting state
/// machine errors and used in fuzz targets and tests.
#[cfg(any(test, feature = "_test_utils"))]