for i := 0; i < 48; i++ {
		m[fmt.Sprintf("%d", i)] = struct{}{}
	}

	// Add a 49th entry, to start a grow to 8 buckets.
	m["foo"] = struct{}{}

	// Remove that 49th entry. m is still growing to 8 buckets,
	// but a clone of m will only have 4 buckets because it
	// only needs to fit 48 entries.
	delete(m, "foo")

	// Clone an 8-bucket map to a 4-bucket map.
	_ = maps.Clone(m)

# External Links and Articles

**FastAPI** has a great community constantly growing.

There are many posts, articles, tools, and projects, related to **FastAPI**.

Here's an incomplete list of some of them.

!!! tip

struct HWND__{int unused;}; typedef struct HWND__ *HWND;
*/
import "C"

import (
	"testing"
	"unsafe"
)

func test42018(t *testing.T) {
	// Test that Windows handles are marked go:notinheap, by growing the
	// stack and checking for pointer adjustments. Trick from
	// test/fixedbugs/issue40954.go.
	var i int
	handle := C.HANDLE(unsafe.Pointer(uintptr(unsafe.Pointer(&i))))

      // This is the size needed to add the replacement, not the full size
      // needed by the string. We only regrow when we absolutely must, and
      // when we do grow, grow enough to avoid excessive growing. Grow.
      int sizeNeeded = destIndex + charsSkipped + rlen;
      if (destSize < sizeNeeded) {
        destSize = sizeNeeded + DEST_PAD_MULTIPLIER * (slen - index);
        dest = growBuffer(dest, destIndex, destSize);

      // This is the size needed to add the replacement, not the full size
      // needed by the string. We only regrow when we absolutely must, and
      // when we do grow, grow enough to avoid excessive growing. Grow.
      int sizeNeeded = destIndex + charsSkipped + rlen;
      if (destSize < sizeNeeded) {
        destSize = sizeNeeded + DEST_PAD_MULTIPLIER * (slen - index);
        dest = growBuffer(dest, destIndex, destSize);

	//   background activity and allocation demand.

	// - "live at last GC" is not available through the current metrics
	//    interface. Instead, live is estimated by knowing the adjusted value of
	//    GOGC and the new heap goal following a GC (this requires knowing that
	//    at least one GC has occurred):
	//		  estLive = 100 * newGoal / (100 + currentGogc)
	//    this new value of GOGC

		clock_id int32
		tp       unsafe.Pointer
	}{_CLOCK_MONOTONIC, unsafe.Pointer(&ts)}
	if errno := libcCall(unsafe.Pointer(abi.FuncPCABI0(clock_gettime_trampoline)), unsafe.Pointer(&args)); errno < 0 {
		// Avoid growing the nosplit stack.
		systemstack(func() {
			println("runtime: errno", -errno)
			throw("clock_gettime failed")
		})
	}
	return ts.tv_sec*1e9 + int64(ts.tv_nsec)
}
func clock_gettime_trampoline()

int TF_OutputListNumOutputs(TF_OutputList* o);
// Return the `i`th output in the list.
TF_AbstractTensor* TF_OutputListGet(TF_OutputList* o, int i);
// Append a tensor at the end of the output list, growing its size by one.
void TF_OutputListPushBack(TF_OutputList* o, TF_AbstractTensor* tensor,
                           TF_Status*);

// TF_ExecuteOperation will, if in eager mode, execute, if in graph mode, maybe

	//
	// Debuggers rely on us running on the same thread until we get to
	// dispatch the function they asked as to.
	//
	// We're going to transfer this to the new G we just created.
	lockOSThread()

	// Create a new goroutine to execute the call on. Run this on
	// the system stack to avoid growing our stack.
	systemstack(func() {
		// TODO(mknyszek): It would be nice to wrap these arguments in an allocated

}

// String converts mask to string
func (s *bitMask) String() string {
	grouping := 2
	for shift := 64 - grouping; shift > 0; shift -= grouping {
		if *s > (1 << uint(shift)) {
			return fmt.Sprintf("%0"+strconv.Itoa(shift+grouping)+"b", *s)
		}
	}
	return fmt.Sprintf("%0"+strconv.Itoa(grouping)+"b", *s)
}

// Count counts number of bits in mask set to one
func (s *bitMask) Count() int {