class_docstr: Class to store results from the matcher.
  
  This class is used to store the results from the matcher. It provides
  convenient methods to query the matching results.
docstr: Returns number (int32 scalar tensor) of matched columns.
docstr_tok: ["Returns","number","(","int32","scalar","tensor",")","of","matched","columns","."]
code: def num_ignored_columns(self):
      """Returns number (int32 scalar tensor) of matched columns."""
      return tf.shape(self.ignored_column_indices())[0]
  
imports: import abc
  import tensorflow.compat.v1
label_desc: Use image node_id 11 for calling the Match obj's underlying member method code with example usage: obj.num_ignored_columns() and returns: tf