'Apache Avro: Complex POJO Objects as values of a Map

Consider some POJOs such as follows.

class Configuration {
  private String id;
  private Map<String, LocationConfig> locationConfiguration;
}

class LocationConfig {
  private String locationId;
  private Integer capacity;
  private Boolean available;
}

How can I come up with a JSON based Avro schema for the above? As far as I could find, even though maps are supported in Avro, the key type should always be String (which I can somehow live with) and the values cannot be of Record type. Is there a way around this? The documentation has only follows.

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Upon research I could find somewhat of a similar question, which doesn't look very useful.

javadictionaryavro


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