fromPrivateKey(key)

Feature	Generate an account derived from the private key.
Parameters	string private key
Return Value	object key pair

example

const privatekey = "99a962d2525d0a33f235fa27747bcb3d0ede6885f5241fbdc9fc0e70b057df86fpr";
const Keypair = mitum.account.fromPrivateKey(privatekey);

console.log(Keypair);

// output Keypair
{
  privatekey: '99a962d2525d0a33f235fa27747bcb3d0ede6885f5241fbdc9fc0e70b057df86fpr',
  publickey: '020ba4d2ecd1721483d80a69abd20e7fa5d7388fb29a15c4de9cfe3e16aeea5e41fpu',
  address: '0x15838b16912F79AA7aDB45258d146E488A971869fca'
}