syntax_data: {"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// same key can appear multiple times in the list of arguments.
context_before:     /// Returns the key of an argument. The key defines what the value is, and the
context_after:     pub fn LLVMRemarkArgGetKey(Arg: LLVMRemarkArgRef) -> LLVMRemarkStringRef;