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        if (required < *bufcap)
        {
            break;
        }

        char *newbuf = realloc(*buf, required);
        if (newbuf == NULL)
        {
            return -1;
        }
        *bufcap = required;
        *buf = newbuf;
    } while (true);

    if (type == NEO4J_NULL || type == NEO4J_BOOL || type == NEO4J_INT ||
            type == NEO4J_FLOAT)
    {
        if (fputs(*buf, stream) == EOF)
        {
            return -1;
        }