Source: thirdparty/nlohmann/json.hpp (JSON for Modern C++ 3.12.0). The header states its licences as SPDX
lines only; these are its distinct SPDX lines, verbatim, then the text of the MIT licence they name (the
standard SPDX MIT text, the same words as this project's LICENSE), then the header's note on Abseil code.

SPDX-FileCopyrightText: 2013-2026 Niels Lohmann <https://nlohmann.me>
SPDX-License-Identifier: MIT
SPDX-FileCopyrightText: 2016-2021 Evan Nemerson <evan@nemerson.com>
SPDX-License-Identifier: CC0-1.0
SPDX-FileCopyrightText: 2018 The Abseil Authors
SPDX-FileCopyrightText: 2008, 2009 Björn Hoehrmann <bjoern@hoehrmann.de>
SPDX-FileCopyrightText: 2009 Florian Loitsch <https://florian.loitsch.com/>

MIT License

Copyright (c) 2013-2026 Niels Lohmann

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.

Note in the header:
The following code is taken from https://github.com/abseil/abseil-cpp/blob/10cb35e459f5ecca5b2ff107635da0bfa41011b4/absl/utility/utility.h
which is part of Google Abseil (https://github.com/abseil/abseil-cpp), licensed under the Apache License 2.0.
