diff --git a/vendor/generic/metrics/src/client.rs b/vendor/generic/metrics/src/client.rs
index f7e691ac9a..da41ffbd8a 100644
--- a/vendor/generic/metrics/src/client.rs
+++ b/vendor/generic/metrics/src/client.rs
@@ -27,9 +27,24 @@ pub fn set_auth_token(_: &str) {}
 pub fn set_graphics_api(_: &str) {}
 pub fn set_package_name(_: &str) {}
 pub fn merge_session_invariants(_: &[u8]) {}
-pub fn log_descriptor(_: MetricEventType, _: i64) {}
-pub fn log_event(_: MetricEventType) {}
-pub fn log_metric(_: MetricEventType, _: i64) {}
-pub fn log_histogram_metric(_: MetricEventType, _: i64) {}
-pub fn log_high_frequency_descriptor_event(_: MetricEventType, _: i64, _: i64) {}
-pub fn log_event_with_details(_: MetricEventType, _: &RecordDetails) {}
+
+/// Logs a counter with the given descriptor as aux. data. A descriptor is
+/// generally an enum value or error code.
+pub fn log_descriptor(_event_type: MetricEventType, _descriptor: i64) {}
+
+/// Logs a counter with no aux. data.
+pub fn log_event(_event_type: MetricEventType) {}
+
+/// Logs a real valued metric (e.g. a data transfer rate, a latency value, etc)
+/// with the supplied value.
+pub fn log_metric(_event_type: MetricEventType, _value: i64) {}
+
+/// Logs a histogram metric with the supplied value. Note: step is a value to
+/// be added to the distribution.
+pub fn log_histogram_metric(_event_type: MetricEventType, _step: i64) {}
+
+/// Logs a high frequency counter with the supplied aux. data and value.
+pub fn log_high_frequency_descriptor_event(_: MetricEventType, _descriptor: i64, _step: i64) {}
+
+/// Logs a counter with additional data.
+pub fn log_event_with_details(_event_type: MetricEventType, _details: &RecordDetails) {}