android retrofit2 设置请求头header

public interface  {
    ({
        "header1:headerValue1",
        "header2:headerValue2",
        "header3:headerValue3",
    })
    @POST("Login")
    Call<Account> login(@Body ReqLogin body);
}

public interface  {
    @POST("login")
    Call<Account> login(@Body ReqLogin body, @Header("token") String token);
}