Get category from slug list

$category_slug_array = array('slug_1', 'slug_2', 'slug_2'); //array of category slugs

foreach($category_slug_array as $category_slug){
   $my_categories[] = get_term_by( 'slug', $category_slug, 'category'); //getting category object by slug
}

print_r($my_categories); //printing array of categories

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