Which of the following is required for the Moshi library to successfully process JSON in Kotlin?

The requirement of having a data class describing the structure of the JSON object is fundamental for the Moshi library to function correctly. This data class acts as a blueprint that reflects the shape of the JSON data being processed. When Moshi encounters JSON data, it deserializes that data into an instance of the data class, mapping JSON keys to the properties of the class based on their names. This structure is crucial because it tells Moshi how to interpret the incoming JSON and how to populate the corresponding Kotlin properties.

Without this data class, Moshi would not know how to convert the JSON into an object, resulting in an inability to effectively parse the data. This is why a well-defined data class is essential in using Moshi for JSON processing in any Kotlin application.