Type Alias DQuadSource 

pub type DQuadSource<'a, D> = Box<dyn Iterator<Item = DResult<D, <D as Dataset>::Quad<'a>>> + 'a>;

👎Deprecated since 0.8.1: prototypes of quads and quads_matching have changed

Type alias for fallible quad iterators produced by a dataset.

See Dataset::quads for more information about how to use it.

Aliased Type

pub struct DQuadSource<'a, D>(/* private fields */);