UI 자동화를 위해 바인딩 기능 구현

- 유니티 에셋 인증 오류로 meta 재생성

Packages/com.unity.inputsystem/InputSystem/Plugins/Users/InputUserAccountHandle.cs

@@ -0,0 +1,81 @@
+using System;
+
+namespace UnityEngine.InputSystem.Users
+{
+    /// <summary>
+    /// Handle for a user account in an external API.
+    /// </summary>
+    public struct InputUserAccountHandle : IEquatable<InputUserAccountHandle>
+    {
+        /// <summary>
+        /// Symbolic name of the API that owns the handle.
+        /// </summary>
+        /// <remarks>
+        /// This essentially provides a namespace for <see cref="handle"/>.
+        ///
+        /// On PS4, for example, this will read "PS4" for user handles corresponding
+        /// to <c>sceUserId</c>.
+        ///
+        /// This will not be null or empty except if the handle is invalid.
+        /// </remarks>
+        public string apiName
+        {
+            get { return m_ApiName; }
+        }
+
+        public ulong handle
+        {
+            get { return m_Handle; }
+        }
+
+        public InputUserAccountHandle(string apiName, ulong handle)
+        {
+            if (string.IsNullOrEmpty(apiName))
+                throw new ArgumentNullException("apiName");
+
+            m_ApiName = apiName;
+            m_Handle = handle;
+        }
+
+        public override string ToString()
+        {
+            if (m_ApiName == null)
+                return base.ToString();
+
+            return string.Format("{0}({1})", m_ApiName, m_Handle);
+        }
+
+        public bool Equals(InputUserAccountHandle other)
+        {
+            return string.Equals(apiName, other.apiName) && Equals(handle, other.handle);
+        }
+
+        public override bool Equals(object obj)
+        {
+            if (ReferenceEquals(null, obj))
+                return false;
+            return obj is InputUserAccountHandle && Equals((InputUserAccountHandle)obj);
+        }
+
+        public static bool operator==(InputUserAccountHandle left, InputUserAccountHandle right)
+        {
+            return left.Equals(right);
+        }
+
+        public static bool operator!=(InputUserAccountHandle left, InputUserAccountHandle right)
+        {
+            return !left.Equals(right);
+        }
+
+        public override int GetHashCode()
+        {
+            unchecked
+            {
+                return ((apiName != null ? apiName.GetHashCode() : 0) * 397) ^ handle.GetHashCode();
+            }
+        }
+
+        private string m_ApiName;
+        private ulong m_Handle;
+    }
+}