https://source.android.com/ 
public interface android.location.GnssMeasurement$State extends java.lang.annotation.Annotation
  minor version: 0
  major version: 59
  flags: flags: (0x2601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT, ACC_ANNOTATION
  this_class: android.location.GnssMeasurement$State
  super_class: java.lang.Object
{
}
SourceFile: "GnssMeasurement.java"
NestHost: android.location.GnssMeasurement
InnerClasses:
  public abstract State = android.location.GnssMeasurement$State of android.location.GnssMeasurement
    RuntimeVisibleAnnotations: 
      java.lang.annotation.Retention(value = java.lang.annotation.RetentionPolicy.SOURCE:Ljava/lang/annotation/RetentionPolicy;)