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 __init__(self, in_mem_data, dataset_name):
      self.data = in_mem_data
      self.dataset_name = dataset_name
  
file_path: nylon/nylon/data/reader.py
imports: import pandas
  import warnings
label_desc: Use image node_id 1 to create a new DataReader object  with example: obj = DataReader(in_mem_data, dataset_name)