src/Fixer/ClassNotation/ClassDefinitionFixer.php
public function getDefinition()
    {
        return new FixerDefinition(
            'Whitespace around the keywords of a class, trait or interfaces definition should be one space.',
            [
                new CodeSample(
                    '<?php

class  Foo  extends  Bar  implements  Baz,  BarBaz
{
}

final  class  Foo  extends  Bar  implements  Baz,  BarBaz
{
}

trait  Foo
{
}
'
                ),
                new VersionSpecificCodeSample(
                    '<?php

$foo = new  class  extends  Bar  implements  Baz,  BarBaz {};
',
                    new VersionSpecification(70100)
                ),
                new CodeSample(
                    '<?php

class Foo
extends Bar
implements Baz, BarBaz
{}
',
                    ['single_line' => true]
                ),
                new CodeSample(
                    '<?php

class Foo
extends Bar
implements Baz
{}
',
                    ['single_item_single_line' => true]
                ),
                new CodeSample(
                    '<?php

interface Bar extends
    Bar, BarBaz, FooBarBaz
{}
',
                    ['multi_line_extends_each_single_line' => true]
                ),
            ]
        );
    }
public function getDefinition()
    {
        return new FixerDefinition(
            'Whitespace around the keywords of a class, trait or interfaces definition should be one space.',
            [
                new CodeSample(
                    '<?php

class  Foo  extends  Bar  implements  Baz,  BarBaz
{
}

final  class  Foo  extends  Bar  implements  Baz,  BarBaz
{
}

trait  Foo
{
}
'
                ),
                new VersionSpecificCodeSample(
                    '<?php

$foo = new  class  extends  Bar  implements  Baz,  BarBaz {};
',
                    new VersionSpecification(70100)
                ),
                new CodeSample(
                    '<?php

class Foo
extends Bar
implements Baz, BarBaz
{}
',
                    ['single_line' => true]
                ),
                new CodeSample(
                    '<?php

class Foo
extends Bar
implements Baz
{}
',
                    ['single_item_single_line' => true]
                ),
                new CodeSample(
                    '<?php

interface Bar extends
    Bar, BarBaz, FooBarBaz
{}
',
                    ['multi_line_extends_each_single_line' => true]
                ),
            ]
        );
    }
{@inheritdoc}