internal static extern JavaScriptErrorCode JsCreateContext(JavaScriptRuntime runtime, out JavaScriptContext newContext);
internal static extern JavaScriptErrorCode JsGetRuntime(JavaScriptContext context, out JavaScriptRuntime runtime);
internal static extern JavaScriptErrorCode JsSetRuntimeMemoryAllocationCallback(JavaScriptRuntime runtime, IntPtr callbackState, JavaScriptMemoryAllocationCallback allocationCallback);
internal static extern JavaScriptErrorCode JsSetRuntimeBeforeCollectCallback(JavaScriptRuntime runtime, IntPtr callbackState, JavaScriptBeforeCollectCallback beforeCollectCallback);
internal static extern JavaScriptErrorCode JsIsRuntimeExecutionDisabled(JavaScriptRuntime runtime, out bool isDisabled);
internal static extern JavaScriptErrorCode JsSetRuntimeMemoryLimit(JavaScriptRuntime runtime, UIntPtr memoryLimit);
internal static extern JavaScriptErrorCode JsGetRuntimeMemoryUsage(JavaScriptRuntime runtime, out UIntPtr memoryUsage);
internal static extern JavaScriptErrorCode JsEnableRuntimeExecution(JavaScriptRuntime runtime);
internal static extern JavaScriptErrorCode JsDisposeRuntime(JavaScriptRuntime handle);
internal static extern JavaScriptErrorCode JsCollectGarbage(JavaScriptRuntime handle);
internal static extern JavaScriptErrorCode JsCreateRuntime(JavaScriptRuntimeAttributes attributes,
JavaScriptThreadServiceCallback threadService, out JavaScriptRuntime runtime);
public static extern JavaScriptErrorCode JsDisableRuntimeExecution(JavaScriptRuntime runtime);
public static extern JavaScriptErrorCode JsGetRuntimeMemoryLimit(JavaScriptRuntime runtime, out UIntPtr memoryLimit);