Firstly, thank you @astonishing-answer-96712. But let me explain;
We have postgres table and its description. For example table's description : "Description=It is the table where the nationality information of the customer is kept.\n#Restriction=\n#AggregateRoot=person\n#HasSoftDelete"
I get expressions containing "#" from within this description using Regex that tokens : #HasSoftDelete, #AggregateRoot, #Restriction, etc
Then I want to add these tokens as table's tag so I need to access table's description. But I don't know how to access table description with using custom transformers or I have to use which transformers can do it?