Re-exports commonly used types and traits.
Importing the contents of this module is recommended, especially when working with generators and iterator expressions, as those operations are expressed mostly through traits.
This module re-exports numerous traits. Traits from the
module for generating and decomposing iterators over topological data
Tetragon, etc.) are re-exported so that functions
in iterator expressions can be used without lengthy imports.
A key bound to storage in a graph.