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both statetements error with ....expected var!(v) to expand to an existing variable or be a part of a match
% from my unit tests
foo = 10
assert 10 == my_macro(:foo)
assert 10 == my_macro("foo")
% macro
defmacro my_macro(some_var) do
quote do
v = unquote(some_var)
if is_atom(v), do: var!(v)
if is_binary(v), do: var!(binary_to_atom(v))
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