startLine: start.Line,
			startCol:  start.Column,
			endLine:   end.Line,
			endCol:    end.Column,
		}
		v.funcs = append(v.funcs, fe)
	}
	return v
}

// coverage returns the fraction of the statements in the function that were covered, as a numerator and denominator.
func (f *FuncExtent) coverage(profile *cover.Profile) (num, den int64) {

// new goroutine.
//
// Func.Release must be called to free up resources when the function will not be invoked any more.
func FuncOf(fn func(this Value, args []Value) any) Func {
	funcsMu.Lock()
	id := nextFuncID
	nextFuncID++
	funcs[id] = fn
	funcsMu.Unlock()
	return Func{
		id:    id,
		Value: jsGo.Call("_makeFuncWrapper", id),
	}
}

// Test simple functions.

package main

func assertequal(is, shouldbe int, msg string) {
	if is != shouldbe {
		print("assertion fail", msg, "\n")
		panic(1)
	}
}

func f1() {
}

func f2(a int) {
}

func f3(a, b int) int {
	return a + b
}

func f4(a, b int, c float32) int {
	return (a+b)/2 + int(c)
}

func f5(a int) int {
	return 5
}

func f6(a int) (r int) {

	// the rest of the test, they will block.
	go func() { // func1
		select {}
	}()
	go func() { // func2
		var c chan int
		c <- 0
	}()
	go func() { // func3
		var c chan int
		<-c
	}()
	done1 := make(chan bool)
	go func() { // func4
		<-done1
	}()
	done2 := make(chan bool)
	go func() { // func5
		done2 <- true
	}()
	c1 := make(chan int)
	c2 := make(chan int)

    return burgers
```

Com `async def`, o Python sabe que, dentro dessa função, tem que estar ciente das expressões `await`, e que isso pode "pausar" a execução dessa função, e poderá fazer outra coisa antes de voltar.

Quando você quiser chamar uma função `async def`, você tem que "esperar". Então, isso não funcionará:

```Python

}
func (f *Func) ConstInt32(t *types.Type, c int32) *Value {
	return f.constVal(OpConst32, t, int64(c), true)
}
func (f *Func) ConstInt64(t *types.Type, c int64) *Value {
	return f.constVal(OpConst64, t, c, true)
}
func (f *Func) ConstFloat32(t *types.Type, c float64) *Value {
	return f.constVal(OpConst32F, t, int64(math.Float64bits(float64(float32(c)))), true)
}
func (f *Func) ConstFloat64(t *types.Type, c float64) *Value {

// (Call typecheck.Func instead.)
func tcFunc(n *ir.Func) {
	if base.EnableTrace && base.Flag.LowerT {
		defer tracePrint("tcFunc", n)(nil)
	}

	if name := n.Nname; name.Typecheck() == 0 {
		base.AssertfAt(name.Type() != nil, n.Pos(), "missing type: %v", name)
		name.SetTypecheck(1)
	}
}

// tcCall typechecks an OCALL node.
func tcCall(n *ir.CallExpr, top int) ir.Node {

			start := int(sf.startLine) - tiuStart
			if start != wantStart[name] {
				t.Errorf("tiuTest+%#x: want startLine %d, got %d", pc-pc1, wantStart[name], start)
			}
			if sf.funcID != abi.FuncIDNormal {
				t.Errorf("tiuTest+%#x: bad funcID %v", pc-pc1, sf.funcID)
			}

			if len(stack) > 0 {
				stack += " "
			}
			stack += FmtSprintf("%s:%d", name, line-tiuStart)
		}

		if stack != prevStack {
			prevStack = stack

  for (auto func : module.getOps<func::FuncOp>()) {
    llvm::BitVector args_to_erase(func.getNumArguments());
    OpBuilder builder(func.getBody());

    for (int i = 0, e = func.getNumArguments(); i < e; ++i) {
      SmallVector<TF::InitializeTableFromTextFileV2Op, 4>
          init_table_from_text_file_ops_to_erase;
      auto asset = LookupBoundInputOfType<AssetOp>(func, i, symbol_table);

// CHECK-LABEL: func @func_attr
// CHECK-SAME: tf._implements = #tf_type.func<@symbol_a, {attr0 = 1 : i32, attr1 = "random"}>
func.func @func_attr() attributes {tf._implements = #tf_type.func<@symbol_a, {attr0 = 1 : i32, attr1 = "random"}>} {
  func.return
}

// CHECK-LABEL: func @nested_func_attr