add value vithh error

input/variable/int.go

@@ -0,0 +1,31 @@
+package variable
+
+import (
+	"fmt"
+	"strconv"
+
+	"gitoa.ru/go-4devs/console/input/flag"
+	"gitoa.ru/go-4devs/console/input/value"
+)
+
+func Int(name, description string, opts ...Option) Variable {
+	return New(name, description, append(opts, WithParse(CreateInt, AppendInt), Value(flag.Int))...)
+}
+
+func AppendInt(old value.Value, in string) (value.Value, error) {
+	out, err := strconv.Atoi(in)
+	if err != nil {
+		return nil, fmt.Errorf("append int:%w", err)
+	}
+
+	return value.NewInts(append(old.Ints(), out)), nil
+}
+
+func CreateInt(in string) (value.Value, error) {
+	out, err := strconv.Atoi(in)
+	if err != nil {
+		return nil, fmt.Errorf("create int:%w", err)
+	}
+
+	return value.NewInt(out), nil
+}