pub unsafe extern "C" fn aws_string_new_from_buf(
allocator: *const AwsCAllocator,
buf: *const AwsCByteBuf
) -> *mut AwsCString
pub unsafe extern "C" fn aws_string_new_from_buf(
allocator: *const AwsCAllocator,
buf: *const AwsCByteBuf
) -> *mut AwsCString