tests/Utils/Base64Element.php:15:13: PropertyNotSetInConstructor: Property SimpleSAML\Test\XML\Base64Element::$content is not defined in constructor of SimpleSAML\Test\XML\Base64Element or in any methods called in the constructor (see https://psalm.dev/074)

tests/Utils/ExtendableAttributesElement.php:66:32: ArgumentTypeCoercion: Argument 1 of SimpleSAML\Test\XML\ExtendableAttributesElement::setAttributesNS expects list<SimpleSAML\XML\Attribute>, but parent type array<array-key, SimpleSAML\XML\Attribute> provided (see https://psalm.dev/193)

tests/Utils/LocalizedStringElement.php:15:13: PropertyNotSetInConstructor: Property SimpleSAML\Test\XML\LocalizedStringElement::$content is not defined in constructor of SimpleSAML\Test\XML\LocalizedStringElement or in any methods called in the constructor (see https://psalm.dev/074)

tests/Utils/QNameElement.php:15:13: PropertyNotSetInConstructor: Property SimpleSAML\Test\XML\QNameElement::$content is not defined in constructor of SimpleSAML\Test\XML\QNameElement or in any methods called in the constructor (see https://psalm.dev/074)

tests/XML/AttributeTest.php:94:34: PossiblyNullReference: Cannot call method saveXML on possibly null value (see https://psalm.dev/083)