{
    "number1": { "min_number" : 10 },
    "number2": [{ "min_number" : 20 }],
    "number3": [{ "min_number" : 5 }],
    "empty_field":  { "min_number" : 10 },

    "value_is_string":      { "min_number": 10 },
    "value_is_hash":        { "min_number": 10 },
    "value_is_empty_hash":  { "min_number": 10 },
    "value_is_array":       { "min_number": 10 },
    "value_is_empty_array": { "min_number": 10 }
}