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+// Copyright (C) 2020 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
+
+/*!
+    \class QtConcurrent::QTaskBuilder
+    \inmodule QtConcurrent
+    \brief The QTaskBuilder class is used for adjusting task parameters.
+    \since 6.0
+
+    \ingroup thread
+
+    It's not possible to create an object of this class manually. See
+    \l {Concurrent Task} for more details and usage examples.
+*/
+
+/*!
+    \fn template <class Task, class ...Args> [[nodiscard]] QFuture<InvokeResultType> QtConcurrent::QTaskBuilder<Task, Args...>::spawn()
+
+    Runs the task in a separate thread and returns a future object immediately.
+    This is a non-blocking call. The task might not start immediately.
+*/
+
+/*!
+    \fn template <class Task, class ...Args> void QtConcurrent::QTaskBuilder<Task, Args...>::spawn(QtConcurrent::FutureResult)
+
+    Runs the task in a separate thread. This is a non-blocking call.
+    The task might not start immediately.
+*/
+
+/*!
+    \fn template <class Task, class ...Args> template <class ...ExtraArgs> [[nodiscard]] QTaskBuilder<Task, ExtraArgs...> QtConcurrent::QTaskBuilder<Task, Args...>::withArguments(ExtraArgs &&...args)
+
+    Sets the arguments \a args the task will be invoked with. The code is ill-formed
+    (causes compilation errors) if:
+    \list
+        \li This function is invoked more than once.
+        \li The arguments count is zero.
+    \endlist
+*/
+
+/*!
+    \fn template <class Task, class ...Args> [[nodiscard]] QTaskBuilder<Task, Args...> &QtConcurrent::QTaskBuilder<Task, Args...>::onThreadPool(QThreadPool &newThreadPool)
+
+    Sets the thread pool \a newThreadPool that the task will be invoked on.
+*/
+
+/*!
+    \fn template <class Task, class ...Args> [[nodiscard]] QTaskBuilder<Task, Args...> &QtConcurrent::QTaskBuilder<Task, Args...>::withPriority(int newPriority)
+
+    Sets the priority \a newPriority that the task will be invoked with.
+*/
+
+/*!
+    \typedef QtConcurrent::InvokeResultType
+    \relates QtConcurrent::QTaskBuilder
+
+    The simplified definition of this type looks like this:
+    \code
+    template <class Task, class ...Args>
+    using InvokeResultType = std::invoke_result_t<std::decay_t<Task>, std::decay_t<Args>...>;
+    \endcode
+
+    The real implementation also contains a compile-time check for
+    whether the task can be invoked with the specified arguments or not.
+*/
+
+/*!
+    \enum QtConcurrent::FutureResult
+
+    This enum type is used to invoke a special overload of
+    QtConcurrent::QTaskBuilder::spawn(QtConcurrent::FutureResult)
+    that doesn't return a future object.
+
+    \value Ignore
+           An auxiliary tag which introduced to improve code
+           readability.
+*/