'Bill Number', 'bill_date' => 'Bill Date', 'total_price' => 'Total Price', 'due_date' => 'Due Date', 'order_number' => 'Order Number', 'bill_from' => 'Bill From', 'quantity' => 'Quantity', 'price' => 'Price', 'sub_total' => 'Subtotal', 'tax_total' => 'Tax Total', 'total' => 'Total', 'item_name' => 'Item Name|Item Names', 'payment_due' => 'Payment Due', 'amount_due' => 'Amount Due', 'paid' => 'Paid', 'histories' => 'Histories', 'payments' => 'Payments', 'add_payment' => 'Add Payment', 'download_pdf' => 'Download PDF', 'send_mail' => 'Send Email', 'status' => [ 'new' => 'New', 'updated' => 'Updated', 'partial' => 'Partial', 'paid' => 'Paid', ], ];