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‘serving_default’ : Classification input must be a single string Tensor

I’m building a very simple Classifier. The input data has the following features job object marital object education object default int64 housing int64 loan int64 contact object dayofmonth object month object duration int64 campaign int64 pdays int64 previous int64 poutcome object First version of the serving function def serving_input_receiver_fn(): feature_spec = { ‘job’ : tf.placeholder(dtype […]