Did you *actually* encounter the need for this feature in a real-world scenario, or is it
        just a feature that seems like a sensible addition to Guava?


        Before new features get added to Guava, we really want to be sure that it's for a use case
        that actually comes up in the real world. We want to hear the real-world use case so the

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *

# put linux first in the target list to get all the architectures up front.
linux_targets() {
	selectedtargets | grep 'linux' | sort
}

non_linux_targets() {
	selectedtargets | grep -v 'linux' | sort
}

# Note words in $targets are separated by both newlines and spaces.
targets="$(linux_targets) $(non_linux_targets)"

failed=false
for target in $targets
do
	echo ""
	echo "### Building $target"

	return nil
}

func TestDeadlineWorker(t *testing.T) {
	work := NewDeadlineWorker(500 * time.Millisecond)

	err := work.Run(func() error {
		time.Sleep(600 * time.Millisecond)
		return nil
	})
	if err != context.DeadlineExceeded {
		t.Error("DeadlineWorker shouldn't be successful - should return context.DeadlineExceeded")
	}

	err = work.Run(func() error {
		time.Sleep(450 * time.Millisecond)
		return nil
	})

        rights in the Source Code Form under this License.

3.3. Distribution of a Larger Work

     You may create and distribute a Larger Work under terms of Your choice,
     provided that You also comply with the requirements of this License for the
     Covered Software. If the Larger Work is a combination of Covered Software
     with a work governed by one or more Secondary Licenses, and the Covered

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *

"plural$5","translate$9","processRelativeTime$7","translator$1","translator$2","symbolMap$g","numberMap$f","௧","௨","௩","௪","௫","௬","௭","௮","௯","௦","suffixes$3","12","13","suffixes$4","numbersNouns","translate$a","numberNoun","hundred","ten","one","word","numberAsNoun","suffixes$5","processRelativeTime$8","relativeTimeWithPlural$4","processHoursFunction","nominative","accusative","genitive","months$b","days$2"],"mappings":"CAAE,SAAUA,EAAQC,GACG,iBAAZC,SAA0C,oBAAXC,OAAyBA,OAAOD,QAAUD,IAC9D,mBAAXG,...

Beide sind äquivalent und im Hintergrund dasselbe, aber ich empfehle `Union` statt `Optional`, weil das Wort „**optional**“ impliziert, dass dieser Wert, zum Beispiel als Funktionsparameter, optional ist. Tatsächlich bedeutet es aber nur „Der Wert kann `None` sein“, selbst wenn der Wert nicht optional ist und benötigt wird.

Ich denke, `Union[SomeType, None]` ist expliziter bezüglich seiner Bedeutung.

Übergeben Sie der Funktion `*` als ersten Parameter.