{"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"//"}]}
    // range's beginning should be set to the same value as the range. Note: since this is fully
    // Grow without requiring an additional block. The gap between the current length and the
    // out-of-bounds of the current mask, this is case #3 described in the `set_range` method.