сделал StructDeepCopy()

micro/microfunctions.go

@@ -3,7 +3,9 @@
 package micro
 
 import (
+	"bytes"
 	"context"
+	"encoding/gob"
 	"errors"
 	"fmt"
 	"hash/fnv"
@@ -829,3 +831,13 @@ func StringFloat32_Dimension2(f float32) string {
 func ShowTimePassed(StartAt time.Time) {
 	fmt.Print("Time passed: ", time.Since(StartAt))
 }
+
+// StructDeepCopy - копирует структуру из src в dist
+// dist - обязательно ссылка &
+func StructDeepCopy(src, dist interface{}) (err error) {
+	buf := bytes.Buffer{}
+	if err = gob.NewEncoder(&buf).Encode(src); err != nil {
+		return
+	}
+	return gob.NewDecoder(&buf).Decode(dist)
+}

micro/microfunctions_test.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"github.com/ManyakRus/starter/contextmain"
 	"os"
+	"reflect"
 	"testing"
 	"time"
 )
@@ -598,3 +599,38 @@ func TestStringFloat32_Dimension2(t *testing.T) {
 func TestShowTimePassed(t *testing.T) {
 	defer ShowTimePassed(time.Now())
 }
+
+func TestStructDeepCopy(t *testing.T) {
+	type NestedStruct struct {
+		Number int
+		Text   string
+	}
+
+	type TestStruct struct {
+		ID      int
+		Name    string
+		Nested  NestedStruct
+		Numbers []int
+	}
+
+	src := TestStruct{
+		ID:   1,
+		Name: "Test",
+		Nested: NestedStruct{
+			Number: 100,
+			Text:   "Nested",
+		},
+		Numbers: []int{1, 2, 3},
+	}
+
+	var dist TestStruct
+
+	err := StructDeepCopy(src, &dist)
+	if err != nil {
+		t.Fatalf("error copying struct: %v", err)
+	}
+
+	if !reflect.DeepEqual(src, dist) {
+		t.Errorf("copied struct does not match original struct")
+	}
+}