syntax_data: {"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"involves_placeholder:"}]}
source_snippet:                     involves_placeholder: overlap.involves_placeholder,
context_before:                     intercrate_ambiguity_causes: overlap.intercrate_ambiguity_causes,
context_after:                     overflowing_predicates: overlap.overflowing_predicates,