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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def query(self):
 """ Generates a query using the ingredients supplied by the recipe. :return: A SQLAlchemy query """

        if len(self._cauldron.ingredients()) == 0:
            raise BadRecipe('No ingredients have been added to this recipe')
        if not self.dirty and self._query:
            return self._query

        # Step 1: Gather up global filters and user filters and
        # apply them as if they had been added to recipe().filters(...)

        for extension in self.recipe_extensions:
            extension.add_ingredients()

        # Step 2: Build the query (now that it has all the filters
        # and apply any blend recipes

        # Get the parts of the query from the cauldron
        # We don't need to regather order_bys
        recipe_parts = self._cauldron.brew_query_parts()
        recipe_parts['order_bys'] = self._prepare_order_bys()

        for extension in self.recipe_extensions:
            recipe_parts = extension.modify_recipe_parts(recipe_parts)

        # Start building the query
        query = self._session.query(*recipe_parts['columns'])
        if self._select_from is not None:
            query = query.select_from(self._select_from)
        recipe_parts['query'] = query \
            .group_by(*recipe_parts['group_bys']) \
            .order_by(*recipe_parts['order_bys']) \
            .filter(*recipe_parts['filters'])

        if recipe_parts['havings']:
            for having in recipe_parts['havings']:
                recipe_parts['query'] = recipe_parts['query'].having(having)

        for extension in self.recipe_extensions:
            recipe_parts = extension.modify_prequery_parts(recipe_parts)

        if self._select_from is None and len(
            recipe_parts['query'].selectable.froms
        ) != 1:
            raise BadRecipe(
                'Recipes must use ingredients that all come from '
                'the same table. \nDetails on this recipe:\n{'
                '}'.format(str(self._cauldron))
            )

        for extension in self.recipe_extensions:
            recipe_parts = extension.modify_postquery_parts(recipe_parts)

        recipe_parts = run_hooks(
            recipe_parts, 'modify_query', self.dynamic_extensions
        )

        # Apply limit on the outermost query
        # This happens after building the comparison recipe
        if self._limit and self._limit > 0:
            recipe_parts['query'] = recipe_parts['query'].limit(self._limit)

        if self._offset and self._offset > 0:
            recipe_parts['query'] = recipe_parts['query'].offset(self._offset)

        # Step 5:  Clear the dirty flag,
        # Patch the query if there's a comparison query
        # cache results

        self._query = recipe_parts['query']
        self.dirty = False
        return self._query