title: Sheet.getRange(1,1,1,12) what does the numbers in bracket specify?
body: <pre><code>Sheet.getRange(1,1,1,12)
  </code></pre>
  
  <p>I cannot understand the arguments <code>1,1,1,12</code> . What is this - the sheet id or row or what?</p>
  
  <pre><code>method getRange(row, column, optNumRows, optNumColumns)
  </code></pre>
  
  <p>here what does <code>optNumRows</code> and <code>optNumColumns</code> mean???</p>