import Finch from '@tryfinch/finch-api';

const client = new Finch({
  accessToken: 'My Access Token',
});

const response = await client.hris.documents.retreive('document_id', {
  entity_ids: ['550e8400-e29b-41d4-a716-446655440000'],
});

console.log(response);

{
  "type": "w4_2005",
  "year": 2005,
  "data": {
    "individual_id": "f92b3db4-7bcb-4a54-a570-396bf99e041a",
    "filing_status": "married",
    "total_number_of_allowances": 22000,
    "additional_withholding": 10000,
    "exemption": "exempt"
  }
}