class_docstr: Base class for TPU Embedding Column.
class_docstr_tok: ["Base","class","for","TPU","Embedding","Column","."]
code: def is_sequence_column(self):
      return isinstance(
          self._tpu_categorical_column, _SUPPORTED_SEQUENCE_COLUMNS
      )
  
imports: import math
  from tensorflow.python.feature_column import feature_column
  from tensorflow.python.feature_column import feature_column_lib
  from tensorflow.python.framework import ops
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import init_ops
  from tensorflow.python.ops import variable_scope
  from tensorflow.python.tpu import tpu
  from tensorflow.python.tpu import tpu_function
  from tensorflow.python.tpu import tpu_replication
label_desc: Use image node_id 9 for calling the _TPUBaseEmbeddingColumn obj's underlying member method code with example usage: obj.is_sequence_column() and returns: isinstance