Improve hint for as_ref_mut
@ -1171,4 +1171,4 @@ name = "as_ref_mut"
path = "exercises/conversions/as_ref_mut.rs"
mode = "test"
hint = """
Add AsRef<str> as a trait bound to the functions."""
Add AsRef<str> or AsMut<u32> as a trait bound to the functions."""
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