"""
    j_func()

Lorem ipsum dolor sit amet.
"""
function j_func()
  "R"
end

"""
    j_func(cur_obj::AType)

Lorem ipsum dolor sit amet.
"""
function j_func(cur_obj::AType)
  "G"
end

"""
    j_func(cur_obj::MType)

Lorem ipsum dolor sit amet.
"""
function j_func(cur_obj::MType)
  "B"
end
