syntax_data: {"ast_node_type":"other","tokens":[{"end":41,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// based on the given byte position.
context_before:     /// Calculates the original byte position relative to the start of the file
context_after:     pub fn original_relative_byte_pos(&self, pos: BytePos) -> RelativeBytePos {