Build an input_fn appropriate for serving, expecting fed tf.Examples. (deprecated)
tf.contrib.learn.build_parsing_serving_input_fn( feature_spec, default_batch_size=None )
Creates an input_fn that expects a serialized tf.Example fed into a string placeholder. The function parses the tf.Example according to the provided feature_spec, and returns all parsed Tensors as features. This input_fn is for use at serving time, so the labels return value is always None.
feature_spec: a dict of string to
default_batch_size: the number of query examples expected per batch. Leave unset for variable batch size (recommended).
An input_fn suitable for use in serving.