feat(completion): fix the schema about CompleteResult

/**
 * The server's response to a completion/complete request
 */
export
interface CompleteResult extends Result {
  completion: {
    /**
     *
An array of completion values. Must not exceed 100 items.
     */

values: string[];
    /**
     * The total number of completion options
available. This can exceed the number of values actually sent in the
response.
     */
    total?: number;
    /**
     * Indicates whether
there are additional completion options beyond those provided in the
current response, even if the exact total is unknown.
     */

hasMore?: boolean;
  };
}