if strings.HasPrefix(pathComponents, "/bucket/") {
		// bucket specific metrics, extract the bucket name from the path.
		// it's the last part of the path. e.g. /bucket/api/<bucket-name>
		bucketIdx := strings.LastIndex(pathComponents, "/")
		buckets = append(buckets, pathComponents[bucketIdx+1:])
		// remove bucket from pathComponents as it is dyanamic and
		// hence not included in the collector path.

   */
  private static boolean validateSyntax(List<String> parts) {
    int lastIndex = parts.size() - 1;

    // Validate the last part specially, as it has different syntax rules.

    if (!validatePart(parts.get(lastIndex), true)) {
      return false;
    }

    for (int i = 0; i < lastIndex; i++) {
      String part = parts.get(i);
      if (!validatePart(part, false)) {
        return false;

	// Output: foo, bar, baz
}

func ExampleLastIndex() {
	fmt.Println(bytes.Index([]byte("go gopher"), []byte("go")))
	fmt.Println(bytes.LastIndex([]byte("go gopher"), []byte("go")))
	fmt.Println(bytes.LastIndex([]byte("go gopher"), []byte("rodent")))
	// Output:
	// 0
	// 3
	// -1
}

func ExampleLastIndexAny() {
	fmt.Println(bytes.LastIndexAny([]byte("go gopher"), "MüQp"))

			t.Errorf("Index([]byte(%q), []byte(%q)) = %v; want %v", allocTests[1].a, allocTests[1].b, i, allocTests[1].i)
		}
		if i := LastIndex(allocTests[0].a, allocTests[0].b); i != allocTests[0].i {
			t.Errorf("LastIndex([]byte(%q), []byte(%q)) = %v; want %v", allocTests[0].a, allocTests[0].b, i, allocTests[0].i)
		}
	})
	if allocs != 0 {
		t.Errorf("expected no allocations, got %f", allocs)
	}

): Int = indexOfFirst { comparator.compare(it, value) == 0 }

@Suppress("UNCHECKED_CAST")
internal fun Array<String>.concat(value: String): Array<String> {
  val result = copyOf(size + 1)
  result[result.lastIndex] = value
  return result as Array<String>
}

/** Increments [startIndex] until this string is not ASCII whitespace. Stops at [endIndex]. */
internal fun String.indexOfFirstNonAsciiWhitespace(
  startIndex: Int = 0,

    fun List<MappedApiFunctionParameter>.toDeclarationString(): String =
        takeIf { it.isNotEmpty() }?.let { list ->
            list.mapIndexed { index, p ->
                when {
                    index == list.lastIndex && p.isVarargs && p.type.isKotlinArray -> "vararg `${p.name}`: ${singleTypeArgumentStringOf(p)}"

            val typeArguments = signatureParameter?.typeArguments ?: emptyList()
            ApiFunctionParameter(
                index = idx,
                isVarargs = idx == parameterTypesBinaryNames.lastIndex && delegate.access.isVarargs,
                nameSupplier = {
                    names?.get(idx) ?: delegate.parameters?.get(idx)?.name
                },
                typeBinaryName = parameterTypeBinaryName,

}

func indexBytePortable(s []byte, c byte) int {
	for i, b := range s {
		if b == c {
			return i
		}
	}
	return -1
}

// LastIndex returns the index of the last instance of sep in s, or -1 if sep is not present in s.
func LastIndex(s, sep []byte) int {
	n := len(sep)
	switch {
	case n == 0:
		return len(s)
	case n == 1:
		return bytealg.LastIndexByte(s, sep[0])
	case n == len(s):

            // We want to handle qualified calls like `foo.Bar.Baz()`, but not like `foo.Bar().Baz()`
            if (qualifier is KtCallExpression && index != qualifiers.lastIndex) return null

            qualifier.referenceExpression() as? KtNameReferenceExpression ?: return null
        }

        return qualifyingReferences.map { it.getReferencedName() }
    }

	if length <= nameSize || !isASCII(name) {
		return "", "", false
	} else if length > prefixSize+1 {
		length = prefixSize + 1
	} else if name[length-1] == '/' {
		length--
	}

	i := strings.LastIndex(name[:length], "/")
	nlen := len(name) - i - 1 // nlen is length of suffix
	plen := i                 // plen is length of prefix
	if i <= 0 || nlen > nameSize || nlen == 0 || plen > prefixSize {
		return "", "", false