if ( !segment.HasTag( "abc" ) )

return nullptr;

const size_t segment_start { segment.start };

const size_t segment_end { segment.end };

try {

// skip if return value is None

// Note: cannot assign to type `py::list` directly

// https://pybind11.readthedocs.io/en/stable/advanced/pycpp/object.html#assigning-py-none-to-wrappers

const py::object output { py_entry( input ) };

if ( output.is_none() )

return nullptr;

const py::list output_list { output };

// skip if returned list is empty

if ( output_list.empty() )

return nullptr;

// create translation list from the returned list

const rime::an<rime::FifoTranslation> translation { rime::New<rime::FifoTranslation>() };

for ( const py::handle& item : output_list ) {

const std::string item_string { item.cast<std::string>() };

translation->Append( rime::New<rime::SimpleCandidate>( "python_simple", segment_start, segment_end, item_string ) );

}

return translation;

} catch ( const py::error_already_set& e ) {

LOG( ERROR ) << e.what();

}

return nullptr;