WordPress wp.newPost not able to Add Tags with XMLRPC

I’ve read the similar questions but no joy. I want to add tags when creating a new post using XMLRPC Api.

I am able to send all other parameters perfectly, but tags will not add. Thank you.

$params = array('post_type' => 'post',
            'post_status' => 'publish', 
            'post_title' => 'I like coffee',
            'post_content' => 'some more content here',
            'post_name' => 'complete name',
            'post_category' => array('2', '1'),
            'tags_input' => array('lemon', 'pear') 
            );

SOLUTION: THIS WORKS

 $params = array('post_type' => 'post',
            'post_status' => 'publish', 
            'post_title' => 'I like coffee',
            'post_content' => 'some more content here',
            'post_name' => 'complete name',
            'post_category' => array('2', '1'),
            'terms' => array(   'category' => array('1', '2'),
                                'post_tag' => array('4', '3')
                            )
            );