pub fn default_runtime() -> Option<Arc<dyn Runtime>>Expand description
Automatically select an appropriate runtime from those enabled at compile time
If runtime-tokio is enabled and this function is called from within a Tokio runtime context,
then TokioRuntime is returned. Otherwise, if runtime-async-std is enabled, AsyncStdRuntime
is returned. Otherwise, if runtime-smol is enabled, SmolRuntime is returned.
Otherwise, None is returned.