class Metanorma::Generic::Converter

def metadata_ext_attrs(hash, node) 

def metadata_ext_attrs(hash, node)
  return {} unless hash.is_a?(Hash)
  ret = {}
  hash.each do |k, v|
    next unless v.is_a?(Hash) && v["_attribute"]
    ret[(v["_output"] || k).to_sym] = node.attr(k)
  end
  ret
end