Function slice_truncated 

pub fn slice_truncated<T: Debug>(
    slice: &[T],
    max_len: usize,
) -> DebugValue<TruncatedSlice<'_, T>>

See TruncatedSlice. Useful for #[instrument]:

use tuwunel_core::utils::debug::slice_truncated;

#[tracing::instrument(fields(foos = slice_truncated(foos, 42)))]
fn bar(foos: &[&str]) {}