Passing variable to the extra page in provisional module

[broncha]

Hi,

 

I am following the documentation for the provisional module for WHMCS.

I am trying to implement "Additional Client Area Pages"

 

My module function is returning the pagearray like this

$result = "this is a test";
		$pagearray = array(	'templatefile'	=>	'accountusagehistory',
							'breadcrumb'	=>	'><a href="#">Account Usage History</a>',
							'vars'			=>	array(	'usage'	=> 	$result,
														'test'	=>	"this is a test variable")
						);
		return $pagearray;

 

in the file accountusagehistory.tpl $test is accessible and displays properly

but $usage is set to NULL.

 

Where am I doing wrong?