doctest failure in src/advanced/extend.md:123-129 ```jldoctest weighted julia> typeof(myloss) <: MarginLoss false julia> typeof(myloss) <: HingeLoss false ``` Subexpression: typeof(myloss) <: MarginLoss Evaluated output: ERROR: UndefVarError: `MarginLoss` not defined Stacktrace: [1] top-level scope @ none:1 Expected output: false diff = Warning: Diff output requires color. falseERROR: UndefVarError: `MarginLoss` not defined Stacktrace: [1] top-level scope @ none:1

Process completed with exit code 1.

undefined binding 'SupervisedLoss' in `@docs` block in src/advanced/developer.md:36-38 ```@docs SupervisedLoss ```

undefined binding 'DistanceLoss' in `@docs` block in src/advanced/developer.md:43-45 ```@docs DistanceLoss ```

undefined binding 'MarginLoss' in `@docs` block in src/advanced/developer.md:52-54 ```@docs MarginLoss ```

undefined binding 'deriv' in `@docs` block in src/user/interface.md:14-16 ```@docs deriv ```

undefined binding 'deriv2' in `@docs` block in src/user/interface.md:153-155 ```@docs deriv2 ```

undefined binding 'isconvex' in `@docs` block in src/user/interface.md:182-196 ```@docs isconvex isstrictlyconvex isstronglyconvex isdifferentiable istwicedifferentiable islocallylipschitzcont islipschitzcont isnemitski isclipable ismarginbased isclasscalibrated isdistancebased issymmetric ```

undefined binding 'isstrictlyconvex' in `@docs` block in src/user/interface.md:182-196 ```@docs isconvex isstrictlyconvex isstronglyconvex isdifferentiable istwicedifferentiable islocallylipschitzcont islipschitzcont isnemitski isclipable ismarginbased isclasscalibrated isdistancebased issymmetric ```

undefined binding 'isstronglyconvex' in `@docs` block in src/user/interface.md:182-196 ```@docs isconvex isstrictlyconvex isstronglyconvex isdifferentiable istwicedifferentiable islocallylipschitzcont islipschitzcont isnemitski isclipable ismarginbased isclasscalibrated isdistancebased issymmetric ```

undefined binding 'isdifferentiable' in `@docs` block in src/user/interface.md:182-196 ```@docs isconvex isstrictlyconvex isstronglyconvex isdifferentiable istwicedifferentiable islocallylipschitzcont islipschitzcont isnemitski isclipable ismarginbased isclasscalibrated isdistancebased issymmetric ```