<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def convert_in_oid(service_name):
 """ calculate the correct OID for the service name """

    s = service_name
    # convert the service_name to ascci
    service_ascii = [ord(c) for c in s] 
    # we need the length of the service name
    length = str(len(s))
    # make the oid
    oid = base_oid + "." + length + "." + ".".join(str(x) for x in service_ascii)
    return oid