AmzTagCount      = "x-amz-tagging-count"
	AmzTagDirective  = "X-Amz-Tagging-Directive"

	// S3 transition restore
	AmzRestore            = "x-amz-restore"
	AmzRestoreExpiryDays  = "X-Amz-Restore-Expiry-Days"
	AmzRestoreRequestDate = "X-Amz-Restore-Request-Date"
	AmzRestoreOutputPath  = "x-amz-restore-output-path"

	// S3 extensions
	AmzCopySourceIfModifiedSince   = "x-amz-copy-source-if-modified-since"

iptables -t mangle -F ISTIO_TPROXY
iptables -t mangle -X ISTIO_TPROXY
iptables -t mangle -D PREROUTING -p tcp -m mark --mark 1337 -j CONNMARK --save-mark
iptables -t mangle -D OUTPUT -p tcp -m connmark --mark 1337 -j CONNMARK --restore-mark
iptables -t nat -F ISTIO_REDIRECT
iptables -t nat -X ISTIO_REDIRECT
iptables -t nat -F ISTIO_IN_REDIRECT
iptables -t nat -X ISTIO_IN_REDIRECT
ip6tables -t nat -D PREROUTING -p tcp -j ISTIO_INBOUND

// and returns a fixup function to restore the old settings.
func forceGoDNS() func() {
	c := systemConf()
	oldGo := c.netGo
	oldCgo := c.netCgo
	fixup := func() {
		c.netGo = oldGo
		c.netCgo = oldCgo
	}
	c.netGo = true
	c.netCgo = false
	return fixup
}

// forceCgoDNS forces the resolver configuration to use the cgo resolver
// and returns a fixup function to restore the old settings.
func forceCgoDNS() func() {

	}
	rangeString, data := snapshottable.Snapshot()
	dst.Range = rangeString
	dst.Data = data
	return nil
}

// Restore restores the pool to the previously captured state. ErrMismatchedNetwork
// is returned if the provided port range doesn't exactly match the previous range.
func (r *PortAllocator) Restore(pr net.PortRange, data []byte) error {
	if pr.String() != r.portRange.String() {
		return ErrMismatchedNetwork
	}

// which contain the "real" checkpoint keys into the TensorBundle SSTable.
// They also contain the logic needed to take the restored tensors from
// RestoreV2 and load them back into the "object" they came from via their
// overridden "restore" method:
// https://github.com/tensorflow/tensorflow/blob/ddc1bbad3dfd4a089eb96014f26cc16664b1b2f8/tensorflow/python/training/saving/saveable_object.py#L85

	JAL	runtime·spillArgs(SB)
	MOVV	REGCTXT, 32(R3) // save REGCTXT > args of moveMakeFuncArgPtrs < LOCAL_REGARGS

	MOVV	REGCTXT, R4
	MOVV	R25, R5
	JAL	·moveMakeFuncArgPtrs<ABIInternal>(SB)
	MOVV	32(R3), REGCTXT // restore REGCTXT

	MOVV	REGCTXT, 8(R3)
	MOVV	$argframe+0(FP), R20
	MOVV	R20, 16(R3)
	MOVV	R0, LOCAL_RETVALID(R3)
	ADDV	$LOCAL_RETVALID, R3, R20
	MOVV	R20, 24(R3)
	ADDV	$LOCAL_REGARGS, R3, R20
	MOVV	R20, 32(R3)

#include "textflag.h"

// func Syscall6(num, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, errno uintptr)
TEXT ·Syscall6<ABIInternal>(SB),NOSPLIT,$0-80
	MOVD	R3, R10	// Move syscall number to R10. SYSCALL will move it R0, and restore R0.
	MOVD	R4, R3
	MOVD	R5, R4
	MOVD	R6, R5
	MOVD	R7, R6
	MOVD	R8, R7
	MOVD	R9, R8
	SYSCALL	R10
	MOVD	$-1, R6
	ISEL	CR0SO, R3, R0, R5 // errno = (error) ? R3 : 0

	LMG	48(R15), R6, R15		// Restore non-volatile regs.
	BR	R14				// Return to C.
rest:	MOVD	g_m(g), R4			// R4 = current thread.
	MOVD	m_g0(R4), g			// Switch to g0.
	SUB	$24, R15			// Allocate Go argument slots.
	STMG	R2, R3, 8(R15)			// Fill Go frame.
	BL	runtime·racecallback(SB)	// Call Go code.
	LMG	72(R15), R6, R15		// Restore non-volatile regs.

        override fun toTracking(): Tracking {
            throw IllegalStateException("Cannot track state because it was restored")
        }

        override fun toRestoring(): Restoring {
            throw IllegalStateException("Cannot restore state because it was already restored")
        }

        fun loadFrom(storedState: CachedEnvironmentState) {
            if (storedState.cleared) {

	MOVD	$8, R20
	BREAK
	JMP	restore

restore:
	// Calls and failures resume here.
	//
	// Set R20 to 16 and invoke BRK. The debugger should restore
	// all registers except for PC and RSP and resume execution.
	MOVD	$16, R20
	BREAK
	// We must not modify flags after this point.

	// Restore pointer-containing registers, which may have been