pub fn apply_env_overlay(merged: &mut Value, mode: EnvOverlayMode)Expand description
Relocates flat environment-variable keys in merged into the nested slots the Datadog
deserializer reads, according to mode.
Operates on the caller’s owned merged value; it never touches the shared source map. Apply it
only to the value fed to DatadogConfiguration: the table covers
only supported Datadog keys.