Usage: keychain.generateKeyForChild(index,type)
Description: Generate key for a specific index without storing the result in keychain. Important: For cache/perf reason, this method is discouraged in favor of getKeyForPath.

Parameters:

parameters	type	required	Description
index	number	yes	Enter a valid index to derivate to
type	string	no (default:HDPrivateKey)	Enter a valid type (one of: ['HDPrivateKey','HDPublicKey'])

Returns : {HDPrivateKey|HDPublicKey}

Example:

const { privateKey } = keychain.generateKeyForChild(0);

VERIFY THAT IT ACTUALLY WORKS AS EXPECTED LOL.