Added return types as needed throughout lightning-manager.ts.

Fixed temp linting warnings in helpers.ts.
Added return type to getDefaultLdkStorageShape method in helpers.ts.

Author: coreyphillips

src/lightning-manager.ts

@@ -35,6 +35,7 @@ import {
 	TLdkPeersData,
 	TPeer,
 	DefaultTransactionDataShape,
+	TTransactionData,
 } from './utils/types';
 import { dummyRandomSeed } from './utils/regtest-dev-tools';
 import { getDefaultLdkStorageShape } from './utils/helpers';
@@ -71,10 +72,10 @@ class LightningManager {
 		height: 0,
 	});
 	seed: string = '';
-	getItem: TStorage = () => null;
-	setItem: TStorage = () => null;
-	getTransactionData: TGetTransactionData = async () =>
-		DefaultTransactionDataShape;
+	getItem: TStorage = (): null => null;
+	setItem: TStorage = (): null => null;
+	getTransactionData: TGetTransactionData =
+		async (): Promise<TTransactionData> => DefaultTransactionDataShape;
 	network: ENetworks = ENetworks.regtest;
 
 	constructor() {
@@ -496,7 +497,7 @@ class LightningManager {
 	//LDK events
 
 	private onRegisterTx(res: TRegisterTxEvent): void {
-		(async () => {
+		(async (): Promise<void> => {
 			// Set new/unconfirmed transaction.
 			const filterRes = await Promise.all(
 				this.watchTxs.filter((watchTx) => {

src/utils/helpers.ts

@@ -1,4 +1,4 @@
-import { DefaultLdkDataShape } from './types';
+import { DefaultLdkDataShape, TLdkStorage } from './types';
 
 /**
  * Convert string to bytes
@@ -66,7 +66,9 @@ export const btoa = (input: string): string => {
 
 	for (
 		let block = 0, charCode, i = 0, map = chars;
+		// eslint-disable-next-line no-bitwise
 		str.charAt(i | 0) || ((map = '='), i % 1);
+		// eslint-disable-next-line no-bitwise
 		output += map.charAt(63 & (block >> (8 - (i % 1) * 8)))
 	) {
 		charCode = str.charCodeAt((i += 3 / 4));
@@ -76,14 +78,14 @@ export const btoa = (input: string): string => {
 				"'btoa' failed: The string to be encoded contains characters outside of the Latin1 range.",
 			);
 		}
-
+		// eslint-disable-next-line no-bitwise
 		block = (block << 8) | charCode;
 	}
 
 	return output;
 };
 
-export const getDefaultLdkStorageShape = (seed: string) => {
+export const getDefaultLdkStorageShape = (seed: string): TLdkStorage => {
 	return {
 		[seed]: DefaultLdkDataShape,
 	};