I have a C struct:

typedef struct {
    int First;
    double Numbers[4];
    int Second;
}TryStruct;

and I would like to create and pass it to a DLL it using ffi-napi. The problem is that I couldn't find any support for a "normal" array (just a pointer to an array):

const tryStruct = structFactory({ first: ref.types.int, numbers: TYPE-NEEDED, second: ref.types.int  });

What type do I need to set for numbers in the code above?

The Whole code for a better understanding:

import StructType from 'ref-struct-di';
import ref from 'ref-napi';

...

const structFactory = StructType(ref);

const tryStruct = structFactory({ first: ref.types.int, numbers: TYPE-NEEDED, second: ref.types.int  });

const dllTryLib = new ffi.Library('dllTry', {
    blaTry: [ref.types.void, [ref.refType(tryStruct)]]
});

const tryInstance = new tryStruct({ first: 1, numbers: [1, 2, 3], second: 22 });

dllTryLib.blaTry(tryInstance.ref());