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`
  --> 83a50d2c66d3094b96c1c03c41832ff49622bcc32d96a89e3cb98e5fae1c4d2e:16:20
   |
16 |     prepare(signer: AuthAccount) {
   |                     ^^^^^^^^^^^ not found in this scope