Hide tokio:: from sentry stacktraces (#24032)

GitOrigin-RevId: 9c16a0448ea4ffb463fd4d8edfc8aaa9084db29e

crates/errors/src/lib.rs

@@ -2,7 +2,10 @@
 #![feature(type_alias_impl_trait)]
 #![feature(let_chains)]
 #![feature(impl_trait_in_assoc_type)]
-use std::borrow::Cow;
+use std::{
+    borrow::Cow,
+    sync::LazyLock,
+};
 
 use ::metrics::{
     metric_tag_const,
@@ -18,6 +21,10 @@ use tungstenite::protocol::{
 
 mod metrics;
 
+/// These module prefixes are default-hidden from stacktraces
+/// See https://docs.sentry.io/platforms/rust/configuration/options/#in-app-exclude
+pub static SENTRY_IN_APP_EXCLUDE: LazyLock<Vec<&'static str>> = LazyLock::new(|| vec!["tokio::"]);
+
 /// ErrorMetadata object can be attached to an anyhow error chain via
 /// `.context(e /*ErrorMetadata*/)`. It is a generic object to be used
 /// across the codebase to tag errors with information that is used to classify.