syntax_data: {"ast_node_type":"other","tokens":[{"end":21,"kind":"keyword","start":0,"text":"cv_stack_len:"}]}
source_snippet:     cv_stack_len: u8,
context_before:     chunk: llvm_blake3_chunk_state,
context_after:     /// The stack size is MAX_DEPTH + 1 because we do lazy merging. For example,