class_docstr: Constructor for the DataReader class.
  Data Reader class takes in the information given by the user, and appropriately reads the data in. Detects for filetype, and other information passed to it
  :param in_mem_data: data file as a path
  :param dataset_name: name of the dataset
code: def elements_to_drop(self):
      dropping = []
      if "drop" not in self.data:
          pass
      else:
          for element in self.data["drop"]:
              if element == self.data["target"]:
                  raise Exception(
                      "Your target of --  {} -- cannot be the same as the columns you're trying to drop.".format(
                          self.data["target"]
                      )
                  )
              dropping.append(element)
      return dropping
  
file_path: nylon/nylon/data/reader.py
imports: import pandas
  import warnings
label_desc: Use image node_id 2 for calling the DataReader obj's underlying member method code with example usage: obj.elements_to_drop() and returns: dropping