$ emerge poetry-core -v

These are the packages that would be merged, in order:

Calculating dependencies... done!

emerge: there are no ebuilds to satisfy "dev-python/lark[python_targets_python3_10?,pytho
n_targets_python3_7?,python_targets_python3_9?,python_targets_python3_8?,-python_si
ngle_target_python3_10,-python_single_target_python3_7,-python_single_target_python3_9
,-python_single_target_python3_8]".
(dependency required by "dev-python/poetry-core-1.4.0::python-modules-kit" [ebuild])
(dependency required by "poetry-core" [argument])