global

def matched_paths(obj, selector) 

def matched_paths(obj, selector)
  selector_parts = selector.split('.').map(&:to_sym)
  paths_to_all_fields(obj).select do |key_parts|
    key_parts.size == selector_parts.size && key_parts.zip(selector_parts).all? do |kp, sp|
      kp == sp || (sp == :* && !kp.nil?)
    end
  end
end