cfengine aces clean up

body common control
{
        bundlesequence => { "clean_acls" };
}

bundle agent clean_acls
{
  files:
      "/tmp/myFileWithAces"
        create => "true",
        acl => set_posix_aces;
        #acl => clean_posix_aces;
}

# Settings some aces here
body acl set_posix_aces
{
      acl_method => "overwrite";
      acl_type   => "posix";
      aces       => { "user:*:rx", "group:*:rx", "all:r", "mask:rx" };
}

# I want to remove current aces of the file
body acl clean_posix_aces
{
      acl_method => "overwrite";
      acl_type   => "posix";
      aces       => {};
}