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`
 --> a7153d2792013dc16a94cf54fe3f93a96914fd927794ba5106609c9b4db4ad3b:6:20
  |
6 |     prepare(signer: AuthAccount) {
  |                     ^^^^^^^^^^^ not found in this scope