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Loads a tfds.core.DatasetBuilder from the given generated dataset path.

This function reconstruct the tfds.core.DatasetBuilder without requirering the original generation code.

It will read the <builder_dir>/features.json in order to infer the structure (feature names, nested dict,...) and content (image, sequence,...) of the dataset. The serialization format is defined in tfds.features.FeatureConnector in to_json().

builder_dir str, path of the directory containing the dataset to read ( e.g. ~/tensorflow_datasets/mnist/3.0.0/).

builder tf.core.DatasetBuilder, builder for dataset at the given path.