Custom Taxonomy support?

Alright! This probably depends on how you registered your taxonomies and everything, but I got it to work like this with what I’m working on:

in the $default_params array, add this:
‘post_type’ => ”,
‘tax_query’ => array(
array(
‘taxonomy’ => ”,
‘field’ => ‘slug’,
‘terms’ => ”
)
)

in the $get_post_args array, add this:
‘post_type’ => $params[‘post_type’],
‘tax_query’ => array(
array(
‘taxonomy’ => $params[‘taxonomy’],
‘field’ => ‘slug’,
‘terms’ => $params[‘term’],
)
)

my shortcodes now work like this:
[message-flow taxonomy=”insert taxonomy slug” term=”insert taxonomy term slug” post_type=”insert post type slug”]

Can someone confirm that this is a good approach or expand on this?