def filter_collection(ignore_keys)
      return @collection if ignore_keys.blank?
      @collection.select { |kv_item| !ignore_keys.include?(kv_item.keys.first) }
    end
def filter_collection(ignore_keys)
      return @collection if ignore_keys.blank?
      @collection.select { |kv_item| !ignore_keys.include?(kv_item.keys.first) }
    end
Filter collection keys

 @return [Array<Hash>] collection without ignored keys