class_docstr: Simple Channel that writes results to a TSV file.
class_docstr_tok: ["Simple","Channel","that","writes","results","to","a","TSV","file","."]
code: def get_title(self, context_keys=()):
      return ("prediction", "target", "score") + context_keys
  
imports: import csv
  import sys
  import traceback
  from typing import Tuple
  import numpy
  import torch
  from numpy import linalg
  from pytext.common.constants import Stage
  from pytext.utils.file_io import PathManager
  from torch.utils.tensorboard import SummaryWriter
label_desc: Use image node_id 3 for calling the FileChannel obj's underlying member method code with example usage: obj.get_title(context_keys) and returns: unknown