From b74957acdfc8d67d154bcb4698acd7575db7cc47 Mon Sep 17 00:00:00 2001
From: Leonid Logvinov <logvinov.leon@gmail.com>
Date: Fri, 11 May 2018 17:38:51 +0200
Subject: Add missing type definitions

---
 packages/assert/src/index.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'packages/assert')

diff --git a/packages/assert/src/index.ts b/packages/assert/src/index.ts
index 938daab92..f3b3651d5 100644
--- a/packages/assert/src/index.ts
+++ b/packages/assert/src/index.ts
@@ -10,7 +10,7 @@ export const assert = {
         const isBigNumber = _.isObject(value) && (value as any).isBigNumber;
         this.assert(isBigNumber, this.typeAssertionMessage(variableName, 'BigNumber', value));
     },
-    isValidBaseUnitAmount(variableName: string, value: BigNumber) {
+    isValidBaseUnitAmount(variableName: string, value: BigNumber): void {
         assert.isBigNumber(variableName, value);
         const isNegative = value.lessThan(0);
         this.assert(!isNegative, `${variableName} cannot be a negative number, found value: ${value.toNumber()}`);
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