class_docstr: Reads in the a Triplet Dataset: Each line contains (at least) 3 columns, one anchor column (s1),
  one positive example (s2) and one negative example (s3)
code: def get_examples(self, filename, max_examples=0):
      """ """
      data = csv.reader(
          open(
              os.path.join(self.dataset_folder, filename),
              encoding="utf-8",
          ),
          delimiter=self.delimiter,
          quoting=self.quoting,
      )
      examples = []
      if self.has_header:
          next(data)
  
      for id, row in enumerate(data):
          s1 = row[self.s1_col_idx]
          s2 = row[self.s2_col_idx]
          s3 = row[self.s3_col_idx]
  
          examples.append(InputExample(texts=[s1, s2, s3]))
          if max_examples > 0 and len(examples) >= max_examples:
              break
  
      return examples
  
imports: from .None import InputExample
  import csv
  import os
label_desc: Use image node_id 2 for calling the TripletReader obj's underlying member method code with example usage: obj.get_examples(filename, max_examples) and returns: examples