resize_partition_on_gpt_disk(args)Once you have an instance of the page and you are in the Expert Partitioning resize_partition_on_gpt_disk can be invoked to resize any partition or hard disk. The test_data hash should contains the variables disk, existing_partition and part_size. disk is used to select one of the options in the menu, like LVM or Bcache and a needle should match with the disk value included. existing_partition represents the partition or hard disk that you want to resize with the value of part_size.