code: def to_int(self, *cols, **kwargs):
          
          try:
              for col in cols:
                  self.df[col] = pd.to_numeric(self.df[col], **kwargs)
          except Exception as e:
              self.err(e, "Can not convert column values to integer")
              return
          self.ok("Converted column values to integers")
docs: Convert some column values to integers
  
          :param \*cols: names of the colums
          :type \*cols: str, at least one
          :param \*\*kwargs: keyword arguments for ``pd.to_numeric``
          :type \*\*kwargs: optional
  
          :example: ``ds.to_int("mycol1", "mycol2", errors="coerce")``