import {Buffer} from 'buffer';
export const toBuffer = (arr: Buffer | Uint8Array | Array<number>): Buffer => {
if (Buffer.isBuffer(arr)) {
return arr;
} else if (arr instanceof Uint8Array) {
return Buffer.from(arr.buffer, arr.byteOffset, arr.byteLength);
} else {
return Buffer.from(arr);
}
};