Python ANN, training parameters

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using python's builtin help function we get:

>>> help(cv2.ml)
Help on module cv2.ml in cv2:

NAME
    cv2.ml

FUNCTIONS
    ANN_MLP_create(...)
        ANN_MLP_create() -> retval
        .   @brief Creates empty model
...
DATA
    ANN_MLP_ANNEAL = 2
    ANN_MLP_BACKPROP = 0
    ANN_MLP_GAUSSIAN = 2
    ANN_MLP_IDENTITY = 0
    ANN_MLP_LEAKYRELU = 4
    ANN_MLP_NO_INPUT_SCALE = 2
    ANN_MLP_NO_OUTPUT_SCALE = 4
    ANN_MLP_RELU = 3
    ANN_MLP_RPROP = 1
    ANN_MLP_SIGMOID_SYM = 1
    ANN_MLP_UPDATE_WEIGHTS = 1