Macro debug_assert_option_none 

macro_rules! debug_assert_option_none {
    ($($arg:tt)*) => { ... };
}

👎Deprecated:

Please rename from debug_assert_option_none into debug_assert_none because more developers prefer the shorter name.

Assert expression is None.

Deprecated. Please rename from debug_assert_option_none into debug_assert_none because more developers prefer the shorter name.