\DOC empty_rewrites

\TYPE {empty_rewrites: rewrites}

\SYNOPSIS
The empty database of rewrite rules.

\USES
Used to build other rewrite sets.

\SEEALSO
Rewrite.bool_rewrites, Rewrite.implicit_rewrites, Rewrite.add_rewrites, Rewrite.add_implicit_rewrites, Rewrite.set_implicit_rewrites.
\ENDDOC