message: Add type: PairType to KeyringInstance
diff: @@ -52,6 +52,8 @@ export interface KeyringPairs {
  }
  export interface KeyringInstance {
  + type: PairType;
  +
  decodeAddress (encoded: string | Uint8Array): Uint8Array;
  encodeAddress (key: Uint8Array | string): string;
  setAddressPrefix (prefix: Prefix): void;
  