Type Alias OptionalWriter 

pub type OptionalWriter<T> = EitherWriter<T, Sink>;

A writer which may or may not be enabled.

This may be used by MakeWriter implementations that wish to conditionally enable or disable the returned writer based on a span or event’s [Metadata].

Aliased Type

pub enum OptionalWriter<T> {
    A(T),
    B(Sink),
}

Variants

A(T)

A writer of type A.

B(Sink)

A writer of type B.