DropOperation.Set A set of drop operations, corresponding to matching cases in DropOperation. Declarationstruct Set TopicsInitializersinit(rawValue:)Type Propertiesaliascancelcopydeleteforbiddenmove RelationshipsConforms ToCopyableCustomStringConvertibleEquatableEscapableExpressibleByArrayLiteralHashableOptionSetRawRepresentableSendableSendableMetatypeSetAlgebra