syntax_data: {"ast_node_type":"import","tokens":[{"end":93,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:     // line and column number if the file is empty, because an empty file doesn't contain any
context_before:     // purposes of converting a byte position to a line and column number, we can't come up with a
context_after:     // lines. So for our purposes, we don't consider empty files to contain any byte position.