I guess this can be done with just a few lines, without copying the whole codebase?
include(Base.locate_package(Base.PkgId(Base.UUID("eff96d63-e80a-5855-80a2-b1b0885c5ab7"), "Measurements")))
using .Measurements # notice the leading dot
(Note that, strictly speaking, this requires Measurements.jl to make deps a part of public API.)