How to pass authorization token in header in Rest assured?

Trying to automate api testing using Rest assured

@Testpublic void Login() {    Response resp = given().            body("{\"phone_number\":\"2222222222\",\"\r\n"+"+ \" \"country_code\": \"+91\",\"\r\n"+"+ \" \"login_type\": 0}").            when().            contentType(ContentType.JSON).            post("http://url/api/v1/login");    System.out.println(resp.asString());}