operation <users/contacts> with params {
    collection =     (
                {
            birthday = "1978-01-20";
            email = "kate-bell@mac.com";
            "facebook_id" = "";
            "first_name" = Kate;
            "last_name" = Bell;
            "phone_number" = "(555) 564-8583";
        },
                {
            birthday = "";
            email = "d-higgins@mac.com";
            "facebook_id" = "";
            "first_name" = Daniel;
            "last_name" = Higgins;
            "phone_number" = "555-478-7672";
        },
                {
            birthday = "1980-06-22";
            email = "John-Appleseed@mac.com";
            "facebook_id" = "";
            "first_name" = John;
            "last_name" = Appleseed;
            "phone_number" = "888-555-5512";
        },
                {
            birthday = "1985-08-29";
            email = "anna-haro@mac.com";
            "facebook_id" = "";
            "first_name" = Anna;
            "last_name" = Haro;
            "phone_number" = "555-522-8243";
        },
                {
            birthday = "";
            email = "hank-zakroff@mac.com";
            "facebook_id" = "";
            "first_name" = Hank;
            "last_name" = Zakroff;
            "phone_number" = "(555) 766-4823";
        },
                {
            birthday = "1998-06-15";
            email = "";
            "facebook_id" = "";
            "first_name" = David;
            "last_name" = Taylor;
            "phone_number" = "555-610-6679";
        }
    );
}