message: ErrorType ->  ErrorData
diff: @@ -27,7 +27,7 @@ Object.freeze(ERROR_CODES)
  /**
  * @ignore
  */
  -type ErrorType = {
  +type ErrorData = {
  code: string,
  parameter?: string,
  message: string
  @@ -41,7 +41,7 @@ export class BlockstackError extends Error {
  code: string
  parameter?: string
  - constructor(error: ErrorType) {
  + constructor(error: ErrorData) {
  super()
  let message = error.message
  let bugDetails = `Error Code: ${error.code}`
  @@ -220,7 +220,7 @@ class GaiaHubError extends BlockstackError {
  [prop: string]: any
  }
  - constructor(error: ErrorType, response: GaiaHubErrorResponse) {
  + constructor(error: ErrorData, response: GaiaHubErrorResponse) {
  super(error)
  this.hubError = {
  statusCode: response.status,
  