The function createDataFromJSON() is failing on arrays of array structures, such as:

{
    "input_subtract": "beat/array_1d_floats",
    "input_divide":   "beat/array_1d_floats",
    "weights": [
        0,  
        "beat/array_2d_floats"
    ],  
    "biases": [
        0,  
        "beat/array_1d_floats"
    ]   
}

This currently generates the error: *** ValueError: field named value not found. where 'value' is the key of the 'beat/array_*' dictionary.