Symbols from DiffEqFlux not found?

[fredrikekre]

This seems to be specific to DiffEqFlux for some reason:

module A

using DiffEqFlux: FastChain      # Missing reference: FastChain
using DiffEqFlux: initial_params # Missing reference: initial_params
using Example: hello

function f(fc::FastChain)        # Missing reference: FastChain
    return initial_params(fc)    # Missing reference: initial_params
end
g() = hello("fds")

end # module