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: Drop the collection, removing all documents and indexes.
docstr_tok: ["Drop","the","collection",",","removing","all","documents","and","indexes","."]
code: def drop(self):
      """Drop the collection, removing all documents and indexes."""
      self._documents = []
      self._indexes = {}
      self.create_index("_id", unique=True)
  
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 14 for calling the EphemeralCollection obj's underlying member method code with example usage: obj.drop() without return types