def stream(self, date_created_from=values.unset, date_created_to=values.unset,
               limit=None, page_size=None):
        """
        Streams ExecutionInstance records from the API as a generator stream.
        This operation lazily loads records as efficiently as possible until the limit
        is reached.
        The results are returned as a generator, so this operation is memory efficient.

        :param datetime date_created_from: Only show Executions that started on or after this ISO8601 date-time.
        :param datetime date_created_to: Only show Executions that started before this this ISO8601 date-time.
        :param int limit: Upper limit for the number of records to return. stream()
                          guarantees to never return more than limit.  Default is no limit
        :param int page_size: Number of records to fetch per request, when not set will use
                              the default value of 50 records.  If no page_size is defined
                              but a limit is defined, stream() will attempt to read the
                              limit with the most efficient page size, i.e. min(limit, 1000)

        :returns: Generator that will yield up to limit results
        :rtype: list[twilio.rest.studio.v1.flow.execution.ExecutionInstance]
        """
        limits = self._version.read_limits(limit, page_size)

        page = self.page(
            date_created_from=date_created_from,
            date_created_to=date_created_to,
            page_size=limits['page_size'],
        )

        return self._version.stream(page, limits['limit'], limits['page_limit'])
Streams ExecutionInstance records from the API as a generator stream.
        This operation lazily loads records as efficiently as possible until the limit
        is reached.
        The results are returned as a generator, so this operation is memory efficient.

        :param datetime date_created_from: Only show Executions that started on or after this ISO8601 date-time.
        :param datetime date_created_to: Only show Executions that started before this this ISO8601 date-time.
        :param int limit: Upper limit for the number of records to return. stream()
                          guarantees to never return more than limit.  Default is no limit
        :param int page_size: Number of records to fetch per request, when not set will use
                              the default value of 50 records.  If no page_size is defined
                              but a limit is defined, stream() will attempt to read the
                              limit with the most efficient page size, i.e. min(limit, 1000)

        :returns: Generator that will yield up to limit results
        :rtype: list[twilio.rest.studio.v1.flow.execution.ExecutionInstance]