title: How can I offset the HMA line by two candles back in python ta/qtpylib?
body: <p>I managed to populate the hma indicator in <code>freqtrade</code> python framework:</p>
  <pre class="lang-py prettyprint-override"><code>dataframe['hma_50'] = qtpylib.hull_moving_average(dataframe['close'], window=50)
  </code></pre>
  <p>I would like to have a second hma line with same window length but 2 candles back.</p>
  <p>Like in tradingview pine script (hull suite):</p>
  <pre><code>MHULL = HULL[0]
  
  SHULL = HULL[2] #[2]= 2 offset candles back
  </code></pre>
  <p>I searched google and youtube for hours without success.</p>