"
array(4) {
  ["post_type"]=>
  array(2) {
    [0]=>
    string(4) "post"
    [1]=>
    string(7) "library"
  }
  ["paged"]=>
  int(1)
  ["posts_per_page"]=>
  string(2) "10"
  ["tax_query"]=>
  array(1) {
    [0]=>
    array(3) {
      ["taxonomy"]=>
      string(8) "category"
      ["field"]=>
      string(7) "term_id"
      ["terms"]=>
      int(48)
    }
  }
}
string(6) "