fix: allow Uint8Array and Array<number> where Buffer is accepted

web3.js/src/util/to-buffer.js

@@ -0,0 +1,11 @@
+// @flow
+
+export const toBuffer = (arr: Buffer | Uint8Array | Array<number>): Buffer => {
+  if (arr instanceof Buffer) {
+    return arr;
+  } else if (arr instanceof Uint8Array) {
+    return Buffer.from(arr.buffer, arr.byteOffset, arr.byteLength);
+  } else {
+    return Buffer.from(arr);
+  }
+};