Retrieves an array of Unigram objects for the specified key.
The string key to look up unigrams for
An array of Unigram objects matching the key
Whether Unigrams exist for the specified key.
The string key to look up unigrams for
Whether Unigrams exist for the key
Represents a language model interface for retrieving unigrams. A language model provides access to unigram data based on string keys.
The interface is used to abstract different implementations of language models that can provide unigram lookup functionality.
LanguageModel