/**
 * Optional. Used for OAuth2 authentication.
 */
export interface ClientCredentials {
    /** The Client ID that will be used in the OAuth2 Client Credentials flow. */
    client_id: string;
    /** The Client Secret that will be used in the OAuth2 Client Credentials flow. */
    client_secret: string;
    /** The endpoint that will be used in the OAuth2 Client Credentials flow. Expected to return a JSON with an access token and `expires_in` value (in seconds). The `expires_in` value, which must be a minimum of 30 seconds and a maximum of 3600 seconds, is how long Sinch will save the access token before asking for a new one. */
    endpoint: string;
    /** Optional. Space-separated string per RFC 6749. Used to limit the access granted by the token. Max length: 1024 characters. If blank or omitted, this is not included in the token request.  */
    scope?: string;
    /** Optional. When granting `client_credentials`, this is generally omitted. If you do provide a value, it will be forwarded to your OAuth provider as-is. Max length: 64 characters.  */
    response_type?: string;
    /** Optional. Controls how `client_id` and `client_secret` are sent to the token endpoint. Either `BASIC` or `FORM`. If not set or unrecognized, `BASIC` is used by default.  */
    token_request_type?: 'BASIC' | 'FORM' | string;
}