Function biodivine_lib_param_bn::sbml::import::read_unique_child

fn read_unique_child<'a, 'input: 'a>(
    parent: Node<'a, 'input>, 
    name: (&'static str, &'static str)
) -> Result<Node<'a, 'input>, String>

(internal) Find the given tag in a parent Node. Returns error if the tag does not exist or is present in multiple instances.