="Identifier">PostgresQuery</span></a><span class="Other">;</span> <span class="Identifier">column</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">Future</span><span class="Other">[</span><span class="Identifier">Option</span><span class="Other">[</span><span class="Identifier">float</span><span class="Other">]</span><span class="Other">]</span> {.
    <span><span class="Other pragmadots">...</span></s