SearchKeyGenerationMethod

Options for generating the search key from the conversation history.

Fields
method Union type
The method for generating the search key. The following is a list of mutually exclusive fields. At most one of the fields will be set in a response:
lastEntry object (LastEntry)

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

End of mutually exclusive fields.
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.