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`
  --> c2b04872f3373d12ad3e9b7a1ae2284f2199bb5d24a4ccac5626f30bcd70a170:16:20
   |
16 |     prepare(signer: AuthAccount) {
   |                     ^^^^^^^^^^^ not found in this scope