<Please replace this paragraph by a description of what this PR does and alter the TODO-list below to what applies here. Please make a 'draft PR' to begin and then only mark it as ready for review once all the relevant points are done.>
[ ] Tests added
[ ] Documentation added
[ ] Example added (in the documentation, to an existing notebook, or in a new notebook)
[ ] Description in CHANGELOG.rst added (single line such as: (`#XX <https://github.com/openscm/openscm-twolayermodel/pull/XX>`_) Added feature which does something)
<Please replace this paragraph by a description of what this PR does and alter the TODO-list below to what applies here. Please make a 'draft PR' to begin and then only mark it as ready for review once all the relevant points are done.>
CHANGELOG.rst
added (single line such as:(`#XX <https://github.com/openscm/openscm-twolayermodel/pull/XX>`_) Added feature which does something
)