https://lucene.apache.org/lucene-parent/lucene-spatial-extras: Advanced Spatial Shape Strategies for Apache Lucene (The Apache Software Foundation) 
public interface org.apache.lucene.spatial.prefix.tree.CellCanPrune extends org.apache.lucene.spatial.prefix.tree.Cell
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.apache.lucene.spatial.prefix.tree.CellCanPrune
  super_class: java.lang.Object
{
  public abstract int getSubCellsSize();
    descriptor: ()I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "CellCanPrune.java"