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				## Summary Allows for proper lexing of tokens like `->`. The main challenge is to ensure that our forward and backwards representations are the same for cases like `===`. Specifically, we want that to lex as `==` followed by `=` regardless of whether it's a forwards or backwards lex. To do so, we identify the range of the sequential characters (the full span of `===`), lex it forwards, then return the last token. ## Test Plan `cargo test`  | 
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