class_docstr: Non permanent collection
  
  This collection is meant for debugging purposes within the EphemeralDB.
  
  .. seealso:: :class:`orion.core.io.database.ephemeraldb.EphemeralDB` for database object.
class_docstr_tok: ["Non","permanent","collection","This","collection","is","meant","for","debugging","purposes","within","the","EphemeralDB",".","..","seealso",":",":",":","class",":","`","orion.core.io.database.ephemeraldb.EphemeralDB","`","for","database","object","."]
docstr: Return dict of names and sorting order of indexes
  
  EphemeralCollection may only contain unique indexes.
docstr_tok: ["Return","dict","of","names","and","sorting","order","of","indexes","EphemeralCollection","may","only","contain","unique","indexes","."]
code: def index_information(self):
      """Return dict of names and sorting order of indexes
  
      EphemeralCollection may only contain unique indexes.
      """
      return {name: True for name in self._indexes}
  
imports: import copy
  from collections import defaultdict
  from orion.core.io.database import Database, DatabaseError, DuplicateKeyError
  from orion.core.utils.flatten import flatten, unflatten
label_desc: Use image node_id 3 for calling the EphemeralCollection obj's underlying member method code with example usage: obj.index_information() and returns: unknown