Expression For Vector In TERR

I have a data function in which a variable has to be a vector. Variable input below can have N number of elements.

Code: output <- input

"input" should be: c('Bin_14','Bin_15')

To convert the input as a vector, I have created a list box, and then I select multiple elements in this list. Then, using expression I want to convert these selected element as a list. However, in edit expression window, I get error for following expression:

  • Expression: $map("'${BinName}'", ",") 
  • Resulting Expression: 'Bin_14','Bin_15'
  • Error: Only one column or single value can be used for this ParameterType.

Please suggest solution to tackle this error.

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