code: function (params) {
    const oThis = this
    ;
  
    params = params || {};
    oThis.passphrase = params.passphrase || '';
    oThis.chain = params.chain;
  }
docs: Constructor to generate a new address
  
  @param {object} params
  @param {string} params.chain - Chain on which this new address should be generated and stored
  @param {string} [params.passphrase] - Passphrase for the new address. Default: blank
  
  @constructor