'; } public function header() { return '

From:

$company_details
$company_address

To:

$client_details
$company_logo
'; } public function body() { return '

$entity_label

$entity_number
$date_label $date
$due_date_label $due_date
$balance_due_label $balance_due
$product_table_header $product_table_body
$task_table_header $task_table_body
'; } public function task() { return ''; } public function product() { return ''; } public function footer() { return '

$entity.public_notes

$terms_label

$terms

$discount_label $total_tax_labels $line_tax_labels
$discount $total_tax_values $line_tax_values

$balance_due_label

$balance_due

'; } }