syntax_data: {"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// * `x = 0` is encoded as `""` (nothing)
context_before:     /// Push a `tag`-prefixed base 62 integer, when larger than `0`, that is:
context_after:     /// * `x > 0` is encoded as the `tag` followed by `push_integer_62(x - 1)`