4GL ABL Openedge loop through handle?

here is my current code

def var hbTT as handle.

for each Cust:
hbTT:buffer-create().
assign
hbTT::Name = Cust.Name
hbTT::address = Cust.Address.
end.


now what I want to do is to loop through hbtt. How can I do that?

I tried

for each hbTT:
/* Do something */
end.


the error I get is

unknown or ambiguous table hbTT. (725)
​

thank you

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