`print.dataset_list` appears to return warnings with empty lists

[SimonGoring]

get_dataset(gpid = 'Nevada')
The API call was successful, you have returned 0 record.

A dataset_list containing 0 objects:
Accessed from NAh to NAh. 
Datasets:
data frame with 0 columns and 0 rows
Warning messages:
1: In min(x, na.rm = na.rm) :
  no non-missing arguments to min; returning Inf
2: In max(x, na.rm = na.rm) :
  no non-missing arguments to max; returning -Inf

These warnings need to be checked and dealt with.

[SimonGoring]

This issue is resolved now.