Function parse_node_path 

pub fn parse_node_path(
    prefix: impl AsPath,
    depth: usize,
    path: impl AsPath,
) -> Option<NodePath>

Parse a stats broadcast announce path published under prefix with the given grouping depth, splitting it into its group and node parts.

Returns None when the path is not under prefix or has no node category segment where one is expected (which also filters out sibling categories another producer may publish under the same prefix). A group segment literally named node is ambiguous and will mis-parse; don’t name groups that.