title: How to have FilterExpression with multiple conditions in dynamodb
body: <p>I am trying to do table scan on dynamodb 
  Below is the code which is in javascript</p>
  
  <pre><code>var params = {
      TableName: 'Contacts',
      FilterExpression: 'begins_with(CustomerName,:value)OR begins_with(CustomerName,:val) ', 
      ExpressionAttributeValues: { 
          ':value': {'S':'S'},
          ':val':{'S':'E'},
        },
      Select: 'ALL_ATTRIBUTES', 
   };
  
   dynamodb.scan(params, function(err, data) {
      if (err) ppJson(err); // an error occurred
      else ppJson(data); // successful response
  });
  </code></pre>
  
  <p>But I couldn't try the same using botot3.</p>
  
  <p>Below is what I could achieve so far</p>
  
  <pre><code>response = table.scan(
                    Select= 'ALL_ATTRIBUTES',
                    FilterExpression=Attr('CustomerName').begins_with("S") 
                    )
  </code></pre>
  
  <p>I couldn't understand how to add the OR condition. If I add, it shows error </p>