import subprocess


def zfs_get_free(zpool: str):
    size = int(subprocess.check_output(f"zpool get -p -H size | grep {zpool} | awk '{{ print $3}}'", shell=True).decode().strip('\n'))
    size_gb = int(size / 1e+9)
    free = int(subprocess.check_output(f"zpool get -p -H free | grep {zpool} | awk '{{ print $3}}'", shell=True).decode().strip('\n'))
    free_gb = int(free / 1e+9)
    return size_gb, free_gb