Function SzConfigTool_getFeature 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn SzConfigTool_getFeature(
    config_json: *const c_char,
    feature_code: *const c_char,
) -> SzConfigTool_result

Get a feature from the configuration (returns JSON object string)

Safety

configJson and featureCode must be valid null-terminated C strings