Added wrappers

Misc/Wrappers.go

@@ -0,0 +1,31 @@
+package Misc
+
+type Result[T any] struct {
+	Value T
+	Err   error
+}
+
+func NewResult[T any](value T, err error) Result[T] {
+	return Result[T]{Value: value, Err: err}
+}
+
+func (r Result[T]) IsOk() bool {
+	return r.Err == nil
+}
+
+func (r Result[T]) IsErr() bool {
+	return r.Err != nil
+}
+
+func (r Result[T]) Unwrap() (T, error) {
+	return r.Value, r.Err
+}
+
+type Nullable[T any] struct {
+	Value T
+	IsNil bool
+}
+
+func NewNullable[T any]() Nullable[T] {
+	return Nullable[T]{IsNil: true}
+}