using pyserial flush method
<p>I've read somewhere that the use of flush is necessary to reduce lag. Is this true? </p>

<p>I'm not really sure about using it. Please help me understand what it does exactly. </p>

<p>I've checked pyserial docs but it didnt give me much information. All it said was: </p>

<blockquote>
  <p>flush()
  Flush of file like objects. It’s a no-op in this class, may be overridden.</p>
</blockquote>
