Issue with hlsmodel.predict

Created by: JochiSt

When I try to use hls_model.predict( np.array(x) )

I get the error:

  File "/hls4ml/hls4ml/model/graph.py", line 645, in predict
    for i in range(n_samples):
TypeError: 'numpy.float64' object cannot be interpreted as an integer

I fixed this by changing the return of _compute_n_samples(self, x): to return int(n_sample)

The versions I used:

Python 3.8.10 (default, Mar 15 2022, 12:22:08)
[GCC 9.4.0]
Numpy 1.22.3
TensorFlow 2.8.0
Keras 2.8.0

For HLS4ML I used the latest git version.