Get asset metadata

const asset = '1OLPCz72F1rJ7IGtmEMuV1LvfLawT9WGOFuHugW2b7c=';
​
client.api.getAssetMetadata(asset, function(err, result) {
  console.log(result);
});

{
  metadata_unit: '3H0caQSbAjVOkgvOZLPJ8UTWKVdlRq56moVkqdE0noY=',
  registry_address: 'AM6GTUKENBYA54FYDAKX2VLENFZIMXWG',
  suffix: null
}