Add missing type definitions

1 files changed, 4 insertions, 4 deletions

diff --git a/packages/contracts/util/token_registry_wrapper.ts b/packages/contracts/util/token_registry_wrapper.ts
index d78c8a64e..bed62fa53 100644
--- a/packages/contracts/util/token_registry_wrapper.ts
+++ b/packages/contracts/util/token_registry_wrapper.ts
@@ -9,7 +9,7 @@ export class TokenRegWrapper {
     constructor(tokenRegContract: TokenRegistryContract) {
         this._tokenReg = tokenRegContract;
     }
-    public async addTokenAsync(token: Token, from: string) {
+    public async addTokenAsync(token: Token, from: string): Promise<string> {
         const tx = this._tokenReg.addToken.sendTransactionAsync(
             token.address as string,
             token.name,
@@ -21,7 +21,7 @@ export class TokenRegWrapper {
         );
         return tx;
     }
-    public async getTokenMetaDataAsync(tokenAddress: string) {
+    public async getTokenMetaDataAsync(tokenAddress: string): Promise<Token> {
         const data = await this._tokenReg.getTokenMetaData.callAsync(tokenAddress);
         const token: Token = {
             address: data[0],
@@ -33,7 +33,7 @@ export class TokenRegWrapper {
         };
         return token;
     }
-    public async getTokenByNameAsync(tokenName: string) {
+    public async getTokenByNameAsync(tokenName: string): Promise<Token> {
         const data = await this._tokenReg.getTokenByName.callAsync(tokenName);
         const token: Token = {
             address: data[0],
@@ -45,7 +45,7 @@ export class TokenRegWrapper {
         };
         return token;
     }
-    public async getTokenBySymbolAsync(tokenSymbol: string) {
+    public async getTokenBySymbolAsync(tokenSymbol: string): Promise<Token> {
         const data = await this._tokenReg.getTokenBySymbol.callAsync(tokenSymbol);
         const token: Token = {
             address: data[0],