... in order to define matrix spaces backed by numpy arrays of various types
https://numpy.org/doc/stable/reference/arrays.scalars.html#signed-integer-types

For ZZ, this could for example provide a separate element implementation that is never used for arithmetic, but is good enough for creating matrices in methods such as vertex_adjacency_matrix (#32666)

Related earlier ticket: #7920

CC: @kliem @orlitzky

Component: linear algebra

Author: Matthias Koeppe

Branch/Commit: b0a1a04

Reviewer: Travis Scrimshaw

Issue created by migration from https://trac.sagemath.org/ticket/32465