$instance
$instance : mixed
Public static variable to hold the single instance of the class.
Class MainWP_Child_Bulk_Settings_Manager
Handles connecting to the child site as a browser in order performs an HTTP request using the POST method and returns its response.
instance() : \MainWP\Child\MainWP_Child_Bulk_Settings_Manager|null
Create public static instance for MainWP_Child_Bulk_Settings_Manager.