_jetpack_og_get_image_validate_size() – Validate the width and height against required width and height
Actions::jetpack_cron_schedule() – Adds a cron schedule for regular syncing via cron, unless the schedule already exists.
enqueue_calendly_js() – Enqueues the Calendly JS library and inline function to attach event handlers to the button.
Error_Handler::jetpack_react_dashboard_error() – Adds the error message to the Jetpack React Dashboard
