def say_hi(name: str | None):

```Python
@lru_cache
def say_hi(name: str, salutation: str = "Ms."):
    return f"Hello {salutation} {name}"
```

your program could execute like this:

```mermaid
sequenceDiagram

participant code as Code
participant function as say_hi()
participant execute as Execute function

    rect rgba(0, 255, 0, .1)
        code ->> function: say_hi(name="Camila")

		// No keys requested for tokenizing
		{
			input:          `comment="Hi this is my comment ="`,
			keys:           []string{},
			expectedFields: map[string]struct{}{},
		},
		// Single key requested and present
		{
			input:          `comment="Hi this is my comment ="`,
			keys:           []string{"comment"},
			expectedFields: map[string]struct{}{`comment="Hi this is my comment ="`: {}},
		},
		// Keys and input order of k=v is same.

例如，如果您有一个函数：
```Python
@lru_cache
def say_hi(name: str, salutation: str = "Ms."):
    return f"Hello {salutation} {name}"
```

您的程序可以像这样执行：

```mermaid
sequenceDiagram

participant code as Code
participant function as say_hi()
participant execute as Execute function

    rect rgba(0, 255, 0, .1)
        code ->> function: say_hi(name="Camila")
        function ->> execute: 执行函数代码

	//inst:
	//
	// load ints and bytes
	//
	//	LMOVW rreg ',' rreg
	//	{
	//		outcode(int($1), &$2, 0, &$4);
	//	}
	MOVW	R1, R2
	MOVW	LO, R1
	MOVW	HI, R1
	MOVW	R1, LO
	MOVW	R1, HI
	MOVW	R1, R2
	MOVW	LO, R1
	MOVW	HI, R1
	MOVW	R1, LO
	MOVW	R1, HI

	//	LMOVW addr ',' rreg
	//	{
	//		outcode(int($1), &$2, 0, &$4);
	//	}
	MOVW	foo<>+3(SB), R2
	MOVW	16(R1), R2
	MOVW	(R1), R2
	MOVW	foo<>+3(SB), R2

    // into the range of surrogate characters, but if they do we must not test
    // any values in that range. To see why, consider the case where:
    // safeMin <= {hi,lo} <= safeMax
    // where {hi,lo} are characters forming a surrogate pair such that:
    // codePointOf(hi, lo) > safeMax
    // which would result in the surrogate pair being (wrongly) considered safe.
    // If we clip the safe range used during the per-character tests so it is

    char c = 0;
    for (int hi = 0; hi < 256; hi++) {
      for (int lo = 0; lo < 256; lo++) {
        char result = Chars.fromByteArray(new byte[] {(byte) hi, (byte) lo});
        assertWithMessage(
                String.format(
                    Locale.ROOT,
                    "hi=%s, lo=%s, expected=%s, result=%s",
                    hi,
                    lo,
                    (int) c,

	for {
		select {
		case hi, hasMore := <-healthInfoCh:
			if !hasMore {
				// Received all data. Send to SUBNET and return
				err := sendHealthInfo(ctx, healthInfo)
				if err != nil {
					internalLogIf(ctx, fmt.Errorf("Unable to perform callhome: %w", err))
				}
				return
			}
			healthInfo = hi
		case <-healthCtx.Done():
			return
		}
	}
}

		nonUTF8 bool
		flags   uint16
	}{
		{
			name:    "hi, hello",
			comment: "in the world",
			flags:   0x8,
		},
		{
			name:    "hi, こんにちわ",
			comment: "in the world",
			flags:   0x808,
		},
		{
			name:    "hi, こんにちわ",
			comment: "in the world",
			nonUTF8: true,
			flags:   0x8,
		},
		{
			name:    "hi, hello",
			comment: "in the 世界",
			flags:   0x808,
		},

    char c = 0;
    for (int hi = 0; hi < 256; hi++) {
      for (int lo = 0; lo < 256; lo++) {
        char result = Chars.fromByteArray(new byte[] {(byte) hi, (byte) lo});
        assertWithMessage(
                String.format(
                    Locale.ROOT,
                    "hi=%s, lo=%s, expected=%s, result=%s",
                    hi,
                    lo,
                    (int) c,