def get_earliest_timestamp(self, **defaults):
        """
        Creates request builder for Earliest Timestamp

        This method returns the first available DateTime for a given instrument at the specific interval.

        :returns: request builder instance
        :rtype: EarliestTimestampRequestBuilder
        """
        ctx = Context.from_context(self.ctx)
        ctx.defaults.update(defaults)
        return EarliestTimestampEndpoint(ctx, **ctx.defaults)

        Creates request builder for Earliest Timestamp

        This method returns the first available DateTime for a given instrument at the specific interval.

        :returns: request builder instance
        :rtype: EarliestTimestampRequestBuilder
        
src/twelvedata/client.py