syntax_data: {"ast_node_type":"variable","tokens":[{"end":31,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:             let mut drop_shim =
context_before:             // If coroutine has async drops, generating async drop shim
context_after:                 create_coroutine_drop_shim_async(tcx, &transform, body, drop_clean, can_unwind);