Provides information about a live query event relating to a single document live query.

  • States whether the event is an initial event or not.

  • The document’s previous state.

    This will always be nil if isInitial is true. It will also be nil if the document was removed or evicted and isInitial is false.

  • Returns a hash that represents the document.

  • Returns a pattern of words that together create a mnemonic, which represents the document.