The following files are taken from srfi-178 test suite.
<https://github.com/scheme-requests-for-implementation/srfi-178>

    constructors.scm
    conversions.scm
    fields.scm
    gen-accum.scm
    iterators.scm
    logic-ops.scm
    mutators.scm
    quasi-ints.scm
    quasi-string.scm
    selectors.scm

They are covered by the following license:

;;; Copyright (C) 2020 Wolfgang Corcoran-Mathe

;;; Permission is hereby granted, free of charge, to any person obtaining a
;;; copy of this software and associated documentation files (the
;;; "Software"), to deal in the Software without restriction, including
;;; without limitation the rights to use, copy, modify, merge, publish,
;;; distribute, sublicense, and/or sell copies of the Software, and to
;;; permit persons to whom the Software is furnished to do so, subject to
;;; the following conditions:

;;; The above copyright notice and this permission notice shall be included
;;; in all copies or substantial portions of the Software.

;;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
;;; OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
;;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
;;; IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
;;; CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
;;; TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
;;; SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

