'Get information on this collection\'s indexes.
Returns a dictionary where the keys are index names (as
returned by create_index()) and the values are dictionaries
containing information about each index. The dictionary is
guaranteed to contain at least a single key, ``"key"`` which
is a list of (key, direction) pairs specifying the index (as
passed to create_index()). It will also contain any other
metadata about the indexes, except for the ``"ns"`` and
``"name"`` keys, which are cleaned. Example output might look
like this:
>>> db.test.create_index("x", unique=True)
u\'x_1\'
>>> db.test.index_information()
{u\'_id_\': {u\'key\': [(u\'_id\', 1)]},
u\'x_1\': {u\'unique\': True, u\'key\': [(u\'x\', 1)]}}'

def index_information(self):

    cursor = self.list_indexes()
    info = {}
    for index in cursor:
        index['key'] = index['key'].items()
        index = dict(index)
        info[index.pop('name')] = index
    return info
