public struct TangentVector : Differentiable, AdditiveArithmetic
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public typealias TangentVector = `Self`
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public var value: Wrapped.TangentVector?
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public init(_ value: Wrapped.TangentVector?)
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public static var zero: `Self` { get }
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public static func + (lhs: `Self`, rhs: `Self`) -> Optional<Wrapped>.TangentVector
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public static func - (lhs: `Self`, rhs: `Self`) -> Optional<Wrapped>.TangentVector
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public mutating mutating func move(along direction: TangentVector)
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@noDerivative public var zeroTangentVectorInitializer: () -> TangentVector { get }