* header for multiannotator module
* header for outlier module
* header for token_classification.filter
* header for token_classification.rank
* header for token_classification.summary
* header for util
* header for latent_algebra
* header for label_quality_utils
* header for token_classification_utils
* header for huggingfacekerasclassifier
* add experimental modules' dependencies to readme
* Changed all instances of np.array in docstring to np.ndarray
* np.array is NOT a proper class name it is just a function to
create np.ndarrays and therefore should not be parameter class
* Black formatting compliance
* cleanlearning w dfs
* work for sparse matrix as well
* simplify logic of labels_to_array and extend types
* address pr feedback
* add unit test
* rare label dataframe
* modularize subsetting code
* series rarelabel test
* replace cal.com with slack/email
* Add general method to find num_classes from labels
* compute num_classes with pred_probs.shape[1]
* fix broken commits, address 2nd round of comments
Co-authored-by: Curtis G. Northcutt <curtis.northcutt@gmail.com>
* utilities -> internals
* docbuilding instructions improvement
* fixup formatting of contributing.md
* change contributor guidelines language to be optional
* line formatting
Jonas Mueller