code: public boolean has(String tableName, String columnName,
  			GeometryType geometryType) {
  
  		String extensionName = getExtensionName(geometryType);
  		boolean exists = has(extensionName, tableName, columnName);
  
  		return exists;
  	}
docs: Determine if the GeoPackage has the extension, non-linear geometry type
  
  @param tableName
  table name
  @param columnName
  column name
  @param geometryType
  geometry type
  @return true if has extension
  @since 1.1.8