Trait tract_pulse::internal::DatumTypeExt  
pub trait DatumTypeExt {
    // Required methods
    fn scalar_fact(&self) -> TypedFact;
    fn fact<S>(&self, shape: S) -> TypedFact
       where S: Into<ShapeFact>;
}pub trait DatumTypeExt {
    // Required methods
    fn scalar_fact(&self) -> TypedFact;
    fn fact<S>(&self, shape: S) -> TypedFact
       where S: Into<ShapeFact>;
}