Function matches_reader 

pub async fn matches_reader(
    reader: impl AsyncRead + Unpin,
    needle: &str,
) -> Result<bool, Error>

Available on crate feature inspect only.

Search the same UTF-8-debug-or-hex representation as rama_utils::fmt::utf8_or_hex. Memory is bounded by the query and a 16 KiB read buffer. Both representations are matched in one pass; EOF determines whether the complete payload is valid UTF-8.