syntax_data: {"ast_node_type":"function","tokens":[{"end":57,"kind":"keyword","start":0,"text":"pub"}]}
source_snippet:     pub fn LLVMGetUndef(Ty: LLVMTypeRef) -> LLVMValueRef;
context_before:     pub fn LLVMConstAllOnes(Ty: LLVMTypeRef) -> LLVMValueRef;
context_after:     /// Obtain a constant value referring to a poison value of a type.