Transaction

[Error Code: 1101] error caused by: 1 error occurred:
	* transaction preprocess failed: [Error Code: 1101] cadence runtime error: Execution failed:
error: cannot find type in this scope: `AuthAccount`
 --> 6df0e5d97337ea71dedfe36b86dd16e7e973003a15ab5b7b3bdc9012be51e487:3:17
  |
3 | 	prepare(signer: AuthAccount) {
  | 	                ^^^^^^^^^^^ not found in this scope

error: cannot find variable in this scope: `AuthAccount`
 --> 6df0e5d97337ea71dedfe36b86dd16e7e973003a15ab5b7b3bdc9012be51e487:4:13
  |
4 | 		let acct = AuthAccount(payer: signer)
  | 		           ^^^^^^^^^^^ not found in this scope