syntax_data: {"ast_node_type":"function","tokens":[{"end":53,"kind":"keyword","start":0,"text":"pub"}]}
source_snippet:     pub fn LLVMIsNull(Val: LLVMValueRef) -> LLVMBool;
context_before:     pub fn LLVMGetPoison(Ty: LLVMTypeRef) -> LLVMValueRef;
context_after:     pub fn LLVMConstPointerNull(Ty: LLVMTypeRef) -> LLVMValueRef;