def to_dict(self, into=dict):
<EOL>into_c = com.standardize_mapping(into)<EOL>return into_c(self.items())<EOL>
Convert Series to {label -> value} dict or dict-like object.

Parameters
----------
into : class, default dict
    The collections.abc.Mapping subclass to use as the return
    object. Can be the actual class or an empty
    instance of the mapping type you want.  If you want a
    collections.defaultdict, you must pass it initialized.

    .. versionadded:: 0.21.0

Returns
-------
collections.abc.Mapping
    Key-value representation of Series.

Examples
--------
>>> s = pd.Series([1, 2, 3, 4])
>>> s.to_dict()
{0: 1, 1: 2, 2: 3, 3: 4}
>>> from collections import OrderedDict, defaultdict
>>> s.to_dict(OrderedDict)
OrderedDict([(0, 1), (1, 2), (2, 3), (3, 4)])
>>> dd = defaultdict(list)
>>> s.to_dict(dd)
defaultdict(<class 'list'>, {0: 1, 1: 2, 2: 3, 3: 4})