class_docstr: A Term that should be computed from a tuple of inputs.
  
  This is the base class for :class:`catalyst.pipeline.Factor`,
  :class:`catalyst.pipeline.Filter`, and
  :class:`catalyst.pipeline.Classifier`.
class_docstr_tok: ["A","Term","that","should","be","computed","from","a","tuple","of","inputs",".","This","is","the","base","class","for",":","class",":","`","catalyst.pipeline.Factor","`",",",":","class",":","`","catalyst.pipeline.Filter","`",",","and",":","class",":","`","catalyst.pipeline.Classifier","`","."]
docstr: The expression type to return from self.alias().
docstr_tok: ["The","expression","type","to","return","from","self.alias","(",")","."]
code: def _aliased_type(self, *args, **kwargs):
      """
      The expression type to return from self.alias().
      """
      raise NotImplementedError(
          "alias is not yet implemented "
          "for instances of %s." % type(self).__name__
      )
  
imports: from abc import ABCMeta, abstractproperty
  from bisect import insort
  from collections import Mapping
  from weakref import WeakValueDictionary
  from numpy import array, dtype, ndarray, searchsorted
  from six import with_metaclass
  from catalyst.assets import Asset
  from catalyst.errors import DTypeNotSpecified, InvalidOutputName, NonExistentAssetInTimeFrame, NonSliceableTerm, NonWindowSafeInput, NotDType, TermInputsNotSpecified, TermOutputsEmpty, UnsupportedDType, WindowLengthNotSpecified
  from catalyst.lib.adjusted_array import can_represent_dtype
  from catalyst.lib.labelarray import LabelArray
  from catalyst.utils.input_validation import expect_types
  from catalyst.utils.memoize import lazyval
  from catalyst.utils.numpy_utils import bool_dtype, categorical_dtype, datetime64ns_dtype, default_missing_value_for_dtype
  from catalyst.utils.sharedoc import templated_docstring, PIPELINE_ALIAS_NAME_DOC, PIPELINE_DOWNSAMPLING_FREQUENCY_DOC
  from .downsample_helpers import expect_downsample_frequency
  from .sentinels import NotSpecified
label_desc: Use image node_id 12 for calling the ComputableTerm obj's underlying member method code with example usage: obj._aliased_type() without return types