List all documents

{
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        {
            "created_at": "2018-02-02T22:25:27.521Z",
            "id": "6a09cdc3-8948-47f0-aa62-74ac943d6c58",
            "record_type": "document",
            "updated_at": "2018-02-02T22:25:27.521Z",
            "content_type": "application/pdf",
            "customer_reference": "MY REF 001",
            "filename": "test-document.pdf",
            "sha256": "08a96c641c3a74e44eb59afb61a24f2cb9f4d7188748e76ba4bb5edfa3cb7d1c",
            "size": {
                "amount": 123456,
                "unit": "bytes"
            },
            "status": "pending"
        }
    ],
    "meta": {
        "page_number": 2,
        "page_size": 25,
        "total_pages": 3,
        "total_results": 55
    }
}