{
    "base64_1": "base64",
    "base64_2": { "base64": "relaxed" },
    "base64_3": { "base64": [] },

    "value_is_hash":        "base64",
    "value_is_empty_hash":  "base64",
    "value_is_array":       "base64",
    "value_is_empty_array": "base64"
}