'; } public function header() { return '
$company_logo
$company_details
$company_address
'; } public function body() { return '

$entity_label

$client_details
$entity_labels
$entity_details
$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
$subtotal_label $discount_label $total_tax_labels $line_tax_labels
$subtotal $discount $total_tax_values $line_tax_values

$terms_label

$terms
$balance_due_label
$balance_due
'; } }