Support Tuples from function returns

packages/typescript-typings/types/ethers/index.d.ts

@@ -0,0 +1,39 @@
+declare module 'ethers' {
+    export interface TransactionDescription {
+        name: string;
+        signature: string;
+        sighash: string;
+        data: string;
+    }
+    export interface CallDescription extends TransactionDescription {
+        parse: (...args: any[]) => any;
+    }
+    export interface FunctionDescription {
+        (...params: any[]): TransactionDescription | CallDescription;
+        inputs: { names: string[]; types: string[] };
+        outputs: { names: string[]; types: string[] };
+        type: string;
+    }
+    export interface EventDescription {
+        parse: (...args: any[]) => any;
+        inputs: { names: string[]; types: string[] };
+        signature: string;
+        topic: string;
+    }
+    export class Interface {
+        public functions: { [functionName: string]: FunctionDescription };
+        public events: { [eventName: string]: EventDescription };
+        // public static decodeParams(types: string[], data: string): any[];
+        constructor(abi: any);
+    }
+    export class Contract {
+        constructor(address: string, abi: any, provider: any);
+    }
+}
+
+declare module 'ethers/utils/abi-coder' {
+    export class Coder {
+        public decode(names: any[], types: any[], data?: any[]): any[];
+        defaultCoder: Coder;
+    }
+}