// referencing the values captured by the regex pattern.
	template := []byte("$key=$value\n")

	result := []byte{}

	// For each match of the regex in the content.
	for _, submatches := range pattern.FindAllSubmatchIndex(content, -1) {
		// Apply the captured submatches to the template and append the output
		// to the result.
		result = pattern.Expand(result, template, content, submatches)
	}
	fmt.Println(string(result))

			testSubmatchIndices(test, k, match, result[k], t)
		}
	}
}

func TestFindAllSubmatchIndex(t *testing.T) {
	for _, test := range findTests {
		testFindAllSubmatchIndex(&test, MustCompile(test.pat).FindAllSubmatchIndex([]byte(test.text), -1), t)
	}
}

func TestFindAllStringSubmatchIndex(t *testing.T) {
	for _, test := range findTests {

		result = append(result, slice)
	})
	return result
}

// FindAllSubmatchIndex is the 'All' version of [Regexp.FindSubmatchIndex]; it returns
// a slice of all successive matches of the expression, as defined by the
// 'All' description in the package comment.
// A return value of nil indicates no match.
func (re *Regexp) FindAllSubmatchIndex(b []byte, n int) [][]int {
	if n < 0 {
		n = len(b) + 1
	}

		{"(*Regexp).FindAllStringIndex", Method, 0},
		{"(*Regexp).FindAllStringSubmatch", Method, 0},
		{"(*Regexp).FindAllStringSubmatchIndex", Method, 0},
		{"(*Regexp).FindAllSubmatch", Method, 0},
		{"(*Regexp).FindAllSubmatchIndex", Method, 0},
		{"(*Regexp).FindIndex", Method, 0},
		{"(*Regexp).FindReaderIndex", Method, 0},
		{"(*Regexp).FindReaderSubmatchIndex", Method, 0},
		{"(*Regexp).FindString", Method, 0},

pkg regexp, method (*Regexp) FindAllStringSubmatchIndex(string, int) [][]int
pkg regexp, method (*Regexp) FindAllSubmatch([]uint8, int) [][][]uint8
pkg regexp, method (*Regexp) FindAllSubmatchIndex([]uint8, int) [][]int
pkg regexp, method (*Regexp) FindIndex([]uint8) []int
pkg regexp, method (*Regexp) FindReaderIndex(io.RuneReader) []int
pkg regexp, method (*Regexp) FindReaderSubmatchIndex(io.RuneReader) []int