turn</span> <span class="n">Expression</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">expr</span><span class="o">.</span><span class="n">sqlglot_expr</span> <span class="o">+</span> <span class="n">sqlglot</span><span class="o">.</span><span class="n">parse_one</span><span class="p">(</span><span class="s2">&quot;interval </span><span class="si">{}</span><span class="s2"> </span><span class="si">{}</span><span class="s2">&quot;</span><span class="o">.</span