Returns the default evaluators for use in ExtractAndEvaluate.

eval_shared_model Optional shared model (single-model evaluation) or list of shared models (multi-model evaluation). Only required if there are metrics to be computed in-graph using the model.
eval_config Eval config.
schema A schema to use for customizing default evaluators.
compute_confidence_intervals Deprecated (use eval_config).
min_slice_size Deprecated (use eval_config).
serialize Deprecated.
random_seed_for_testing Provide for deterministic tests only.