feat(NODE-6865): deprecate transaction getters (#4567)

Author: durran

src/sessions.ts

@@ -121,6 +121,7 @@ export class ClientSession
  /** @internal */
  owner?: symbol | AbstractCursor;
  defaultTransactionOptions: TransactionOptions;
+ /** @deprecated - Will be made internal in the next major release */
  transaction: Transaction;
  /**
  * @internal

src/transactions.ts

@@ -74,11 +74,13 @@ export interface TransactionOptions extends Omit<CommandOperationOptions, 'timeo
 
 /**
  * @public
+ * @deprecated - Will be made internal in a future major release.
  * A class maintaining state related to a server transaction. Internal Only
  */
 export class Transaction {
  /** @internal */
  state: TxnState;
+ /** @deprecated - Will be made internal in a future major release. */
  options: TransactionOptions;
  /** @internal */
  _pinnedServer?: Server;
@@ -122,26 +124,33 @@ export class Transaction {
  return this._pinnedServer;
  }
 
+ /** @deprecated - Will be made internal in a future major release. */
  get recoveryToken(): Document | undefined {
  return this._recoveryToken;
  }
 
+ /** @deprecated - Will be made internal in a future major release. */
  get isPinned(): boolean {
  return !!this.server;
  }
 
- /** @returns Whether the transaction has started */
+ /**
+ * @deprecated - Will be made internal in a future major release.
+ * @returns Whether the transaction has started
+ */
  get isStarting(): boolean {
  return this.state === TxnState.STARTING_TRANSACTION;
  }
 
  /**
+ * @deprecated - Will be made internal in a future major release.
  * @returns Whether this session is presently in a transaction
  */
  get isActive(): boolean {
  return ACTIVE_STATES.has(this.state);
  }
 
+ /** @deprecated - Will be made internal in a future major release. */
  get isCommitted(): boolean {
  return COMMITTED_STATES.has(this.state);
  }