macro_rules! convert_helper_via_multi_line_list_builder {
    {
    struct $ListBuilder:ident { $things:ident: [$EntryBuilder:ty] $(,)? }
} => { ... };
}
Expand description

Implement TryFrom<MultilineListBuilder> and Into<MultilineListBuilder> for $Builder.

The input syntax is the struct part of that for define_list_builder_helper. $EntryBuilder must implement FromStr.