in src/vector_of_kll.cpp [196:213]
auto vector_of_kll_sketches<T, C>::input_to_vec(ArrInputType<TT>& input) const -> Array1D<TT> {
if (std::holds_alternative<nb::ndarray<>>(input)) {
nb::ndarray<> arr = std::get<nb::ndarray<>>(input);
return Array1D<TT>(arr);
} else if (std::holds_alternative<nb::list>(input)) {
nb::list list = std::get<nb::list>(input);
Array1D<TT> output = make_ndarray<TT>(list.size());
for (size_t i = 0; i < list.size(); ++i)
output(i) = nb::cast<TT>(list[i]);
return output;
} else if (std::holds_alternative<TT>(input)) {
Array1D<TT> output = make_ndarray<TT>(1);
output(0) = std::get<TT>(input);
return output;
} else {
nb::raise_type_error("Unknown input type");
}
}