Macro debug_checked_assume_eq 

macro_rules! debug_checked_assume_eq {
    ($left:expr, $right:expr) => { ... };
    ($left:expr, $right:expr, $($arg:tt)*) => { ... };
}

Equivalent to the standard debug_assert_eq! when used with an unmodified Rust compiler. When compiled with MIRAI, this causes MIRAI to assume the condition unless it can prove it to be false.