AddDialerID creates an attribute to identify a particular dialer.

AddInstanceName creates an attribute with the Cloud SQL instance name.

InitMetrics registers all views once.

RecordDialError reports a failed dial attempt.

RecordDialLatency records a latency value for a call to dial.

RecordOpenConnections records the number of open connections.

RecordRefreshResult reports the result of a refresh operation, either successfull or failed.

StartSpan begins a span with the provided name and returns a context and a function to end the created span.

Attribute annotates a span with additional data.

EndSpanFunc is a function that ends a span, reporting an error if necessary.