Function jsonbb_set_path 

fn jsonbb_set_path(
    target: ValueRef<'_>,
    path: ListRef<'_>,
    i: usize,
    new_value: ValueRef<'_>,
    create_if_missing: bool,
    builder: &mut Builder,
) -> Result<()>

Recursively set path[i..] in target to new_value and write the result to builder.

Panics if i is out of bounds.