pub fn prefer<R1, R2, T>(source_1: R1, source_2: R2) -> Eventual<T> where
R1: IntoReader<Output = T>,
R2: IntoReader<Output = T>,
T: Value,
Expand description
Prefer values from source_1 if available, otherwise use source_2.
pub fn prefer<R1, R2, T>(source_1: R1, source_2: R2) -> Eventual<T> where
R1: IntoReader<Output = T>,
R2: IntoReader<Output = T>,
T: Value,
Prefer values from source_1 if available, otherwise use source_2.