אופציונלי

public typealias AllKeyPaths = [PartialKeyPath<`Self`>]

public var allKeyPaths: [PartialKeyPath<`Self`>] { get }

public struct TangentVector : Differentiable, AdditiveArithmetic

public mutating mutating func move(along direction: TangentVector)

@noDerivative
public var zeroTangentVectorInitializer: () -> TangentVector { get }

public var pythonObject: PythonObject { get }

public init?(_ object: PythonObject)

var xlaOptionalType: Optional_XLAScalarType { get }