How to print out Nim address
just like in C:

```
 int array[] = { 7, 8, 9 };
 printf(" %p ", (void *)&array);

```

? the try:

```
 var
   arr = newSeq[array[2,int]](2)
   refVar = addr arr

 echo refVar

```

gave:

```
Error: type mismatch: got <ptr seq[array[0..1, int]]>
but expected one of: 
proc echo(x: varargs[typed, `$`])
  first type mismatch at position: 1
  required type for x: varargs[typed]
  but expression 'refVar' is of type: ptr seq[array[0..1, int]

```

Please help out !