SearchKeyGenerationMethod

options for generating the search key from the conversation history.

Fields
method Union type
The method for generating the search key. method can be only one of the following:
lastEntry object (LastEntry)

Use only the last entry of the conversation history (contentsExample.contents) as the search key.

JSON representation 
{

  // method
  "lastEntry": {
    object (LastEntry)
  }
  // Union type
}

LastEntry

This type has no fields.

Configuration for using only the last entry of the conversation history as the search key.