fn generate_checked_bit_pattern_enum_without_fields(
input: &DeriveInput,
variants: &Punctuated<Variant, Comma>,
crate_name: &TokenStream,
) -> Result<(TokenStream, TokenStream)>fn generate_checked_bit_pattern_enum_without_fields(
input: &DeriveInput,
variants: &Punctuated<Variant, Comma>,
crate_name: &TokenStream,
) -> Result<(TokenStream, TokenStream)>