first commit

.gitignore

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+# If you prefer the allow list template instead of the deny list, see community template:
+# https://github.com/github/gitignore/blob/main/community/Golang/Go.AllowList.gitignore
+#
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Dependency directories (remove the comment below to include it)
+# vendor/
+
+# Go workspace file
+go.work
+go.work.sum
+
+# env file
+.env

go.mod

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+module codepractice
+
+go 1.22.5
+
+require internal/itertools v0.0.0-00010101000000-000000000000
+replace internal/itertools => ./internal/itertools
+

internal/itertools/go.mod

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+module itertools
+
+go 1.22.5

internal/itertools/itertools.go

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+package itertools
+
+type Iterator struct {
+	dict map[string]int
+}
+
+func (iterator Iterator) GetCount(items []string) map[string]int {
+	iterator.dict = make(map[string]int)
+	for _, item := range items {
+		iterator.dict[item]++
+	}
+	return iterator.dict
+}

main.go

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+package main
+
+import (
+	"fmt"
+	"internal/itertools"
+)
+
+func main() {
+	iterator := itertools.Iterator{}
+	items := []string{"one", "two", "three", "one", "one"}
+	fmt.Println(iterator.GetCount(items))
+}