module Pagy::Backend

def pagy_searchkick_get_vars(_collection, vars)

the _collection argument is not available when the method is called
Sub-method called only by #pagy_searchkick: here for easy customization of variables by overriding 
def pagy_searchkick_get_vars(_collection, vars)
  pagy_set_items_from_params(vars) if defined?(UseItemsExtra)
  vars[:items] ||= VARS[:items]
  vars[:page]  ||= (params[ vars[:page_param] || VARS[:page_param] ] || 1).to_i
  vars
end