julia> @se Foo::Int64 a b c
ERROR: TypeError: in module, expected Symbol, got Expr
Stacktrace:
 [1] eval(::Module, ::Any) at ./boot.jl:331
 [2] eval_user_input(::Any, ::REPL.REPLBackend) at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.4/REPL/src/REPL.jl:86
 [3] run_backend(::REPL.REPLBackend) at /home/degraafc/.local/share/julia/packages/Revise/jVsKo/src/Revise.jl:1023
 [4] top-level scope at none:0

julia> @macroexpand1 @se Foo::Int64 a b c
:($(Expr(:toplevel, :(#= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:152 =#), :(module Foo::Int64
  #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:152 =#
  #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:155 =#
  primitive type Foo <: SuperEnum.Enum{Int64} 64 end
  #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:156 =#
  function Foo(var"#72#x"::SuperEnum.Integer)
      #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:157 =#
      (0 SuperEnum.:<= var"#72#x" SuperEnum.:<= 2) || SuperEnum.enum_argument_error(:Foo, var"#72#x")
      #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:158 =#
      return SuperEnum.bitcast(Foo, SuperEnum.convert(Int64, var"#72#x"))
  end
  #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:160 =#
  (SuperEnum.SuperEnum).basetype(::SuperEnum.Type{Foo}) = begin
          #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:160 =#
          Int64
      end
  #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:161 =#
  (SuperEnum.Base).typemin(var"#74#x"::SuperEnum.Type{Foo}) = begin
          #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:161 =#
          Foo(0)
      end
  #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:162 =#
  (SuperEnum.Base).typemax(var"#75#x"::SuperEnum.Type{Foo}) = begin
          #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:162 =#
          Foo(2)
      end
  #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:163 =#
  (SuperEnum.Base).isless(var"#76#x"::Foo, var"#77#y"::Foo) = begin
          #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:163 =#
          SuperEnum.isless((Int64)(var"#76#x"), (Int64)(var"#77#y"))
      end
  #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:164 =#
  let var"#71#insts" = SuperEnum.ntuple((var"#80#i"->begin
                      #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:164 =#
                      Foo(([0, 1, 2])[var"#80#i"])
                  end), 3)
      #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:165 =#
      (SuperEnum.Base).instances(::SuperEnum.Type{Foo}) = begin
              #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:165 =#
              var"#71#insts"
          end
  end
  #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:167 =#
  function (SuperEnum.Base).string(var"#84#x"::Foo)
      #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:168 =#
      for (var"#81#sym", var"#82#i", var"#83#str") = Tuple{Symbol,Integer,String}[(:a, 0, "a"), (:b, 1, "b"), (:c, 2, "c")]
          #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:169 =#
          if var"#82#i" == (Int64)(var"#84#x")
              #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:170 =#
              return var"#83#str"
          end
      end
  end
  #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:174 =#
  function (SuperEnum.Base).print(var"#88#io"::SuperEnum.IO, var"#89#x"::Foo)
      #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:175 =#
      for (var"#85#sym", var"#86#i", var"#87#str") = Tuple{Symbol,Integer,String}[(:a, 0, "a"), (:b, 1, "b"), (:c, 2, "c")]
          #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:176 =#
          if var"#86#i" == (Int64)(var"#89#x")
              #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:177 =#
              (SuperEnum.Base).print(var"#88#io", var"#85#sym")
              #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:177 =#
              break
          end
      end
  end
  #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:181 =#
  function (SuperEnum.Base).show(var"#90#io"::SuperEnum.IO, var"#91#x"::Foo)
      #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:182 =#
      if SuperEnum.get(var"#90#io", :compact, false)
          #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:183 =#
          SuperEnum.print(var"#90#io", var"#91#x")
      else
          #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:185 =#
          SuperEnum.print(var"#90#io", var"#91#x", "::")
          #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:186 =#
          SuperEnum.show(SuperEnum.IOContext(var"#90#io", :compact => true), SuperEnum.typeof(var"#91#x"))
          #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:187 =#
          SuperEnum.print(var"#90#io", " = ")
          #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:188 =#
          SuperEnum.show(var"#90#io", (Int64)(var"#91#x"))
      end
  end
  #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:191 =#
  function (SuperEnum.Base).show(var"#94#io"::SuperEnum.IO, ::MIME"text/plain", var"#96#t"::SuperEnum.Type{Foo})
      #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:192 =#
      SuperEnum.print(var"#94#io", "Enum ")
      #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:193 =#
      (SuperEnum.Base).show_datatype(var"#94#io", var"#96#t")
      #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:194 =#
      SuperEnum.print(var"#94#io", ":")
      #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:195 =#
      for (var"#92#sym", var"#93#i") = Tuple{Symbol,Integer,String}[(:a, 0, "a"), (:b, 1, "b"), (:c, 2, "c")]
          #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:196 =#
          SuperEnum.print(var"#94#io", "\n", var"#92#sym", " = ")
          #= /home/degraafc/.local/share/julia/packages/SuperEnum/vsEWn/src/SuperEnum.jl:197 =#
          SuperEnum.show(var"#94#io", var"#93#i")
      end
  end
  const a = Foo(0)
  export a
  const b = Foo(1)
  export b
  const c = Foo(2)
  export c
  end))))