Dashing.SessionState.GetTransactionAsync C# (CSharp) Method

        public async Task<IDbTransaction> GetTransactionAsync() {
            if (this.isDisposed) {
                throw new ObjectDisposedException("Session");
            }

            if (this.isComplete) {
                throw new InvalidOperationException("Transaction was marked as completed, no further operations are permitted");
            }

            if (this.transaction == null) {
                if (!this.isTransactionLess) {
                    var thisConnection = await this.GetConnectionAsync();
                    this.transaction = thisConnection.BeginTransaction();
                    this.shouldCommitAndDisposeTransaction = true;
                }
            }

            return this.transaction;
        }