class_docstr: A generic container for immutable data that can be accessed either by
  numeric index or by key. This is similar to an
  :class:`collections.OrderedDict` except that the keys are optional and
  iteration over it returns the values instead of keys.
  
  This is the base class for both :class:`.Column` and :class:`.Row`.
  
  :param values:
      A sequence of values.
  :param keys:
      A sequence of keys.
docstr: Retrieve the contents of this sequence as an
  :class:`collections.OrderedDict`.
docstr_tok: ["Retrieve","the","contents","of","this","sequence","as","an",":","class",":","`","collections.OrderedDict","`","."]
code: def dict(self):
      """
      Retrieve the contents of this sequence as an
      :class:`collections.OrderedDict`.
      """
      if self.keys() is None:
          raise KeyError
  
      return OrderedDict(self.items())
  
imports: from collections import OrderedDict
  from collections.abc import Sequence
  from agate.utils import memoize
label_desc: Use image node_id 18 for calling the MappedSequence obj's underlying member method code with example usage: obj.dict() and returns: OrderedDict