<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def find(self, filter=None, sort=None, skip=None, limit=None, *args, **kwargs):
 """ Finds all matching results :param query: dictionary representing the mongo query :return: cursor containing the search results """

        if self.table is None:
            self.build_table()

        if filter is None:
            result = self.table.all()
        else:
            allcond = self.parse_query(filter)

            try:
                result = self.table.search(allcond)
            except (AttributeError, TypeError):
                result = []

        result = TinyMongoCursor(
            result,
            sort=sort,
            skip=skip,
            limit=limit
        )

        return result