How to make a string (text) left-aligned using PHPWord?

Question

PHP

I am using phpword to generate docx from a template. For example:

$document->setValue('zamena', '<w:br/>Текст для замены.<w:br/>');

this code finds the variable in the ${zamena} docx file and replaces it with the replacement text.
adds a line break. But no matter what I do, it fails to change the text alignment. For example, I use it and it does not bring text alignment in a line to the left. Tried to style

$phpWord->addParagraphStyle('Paragraph', array('bold' => true , 'align' => 'center' ));

and i get an error

Fatal error: Uncaught Error: Call to a member function addParagraphStyle() on null in /home/users/...

Please tell me how to make text alignment to the left in phpword.