pub type jl_call_t = Option<unsafe extern "C" fn(arg1: *mut jl_value_t, arg2: *mut *mut jl_value_t, arg3: u32, arg4: *mut _jl_code_instance_t) -> *mut jl_value_t>;pub type jl_call_t = Option<unsafe extern "C" fn(arg1: *mut jl_value_t, arg2: *mut *mut jl_value_t, arg3: u32, arg4: *mut _jl_code_instance_t) -> *mut jl_value_t>;