try to clarify when timebounds are attached to tx in JSDoc

src/contract/assembled_transaction.ts

@@ -394,10 +394,11 @@ export class AssembledTransaction<T> {
    * If you don't want to simulate the transaction, you can set `simulate` to
    * `false` in the options.
    *
-   *     const tx = await AssembledTransaction.build({
-   *       ...,
-   *       simulate: false,
-   *     })
+   * @example
+   * const tx = await AssembledTransaction.build({
+   *   ...,
+   *   simulate: false,
+   * })
    */
   static async build<T>(
     options: AssembledTransactionOptions<T>,

src/contract/types.ts

@@ -3,7 +3,6 @@
 import { BASE_FEE, Memo, MemoType, Operation, Transaction, xdr } from "@stellar/stellar-base";
 import type { Client } from "./client";
 import type { AssembledTransaction } from "./assembled_transaction";
-import { DEFAULT_TIMEOUT } from "./utils";
 
 export type XDR_BASE64 = string;
 export type u32 = number;
@@ -99,8 +98,10 @@ export type MethodOptions = {
   fee?: string;
 
   /**
-   * The maximum amount of time to wait for the transaction to complete.
-   * Default: {@link DEFAULT_TIMEOUT}
+   * The timebounds which should be set for transactions generated by this
+   * contract client.
+   * @see {@link module:contract.Client#DEFAULT_TIMEOUT}
+   * @default module:contract.Client#DEFAULT_TIMEOUT
    */
   timeoutInSeconds?: number;
 

src/contract/utils.ts

@@ -3,6 +3,8 @@ import type { AssembledTransaction } from "./assembled_transaction";
 
 /**
  * The default timebounds, in seconds, during which a transaction will be valid.
+ * This is attached to the transaction at the time it is built, which takes
+ * place _before_ transaction simulation, and _before_ transaction signing.
  * @constant {number}
  * @default 300
  * @memberof module:contract.Client