aws/aws-sdk-php — pull request #148 by datibbaw (2013-09-12 16:58:38+00:00)
Title: Update S3Client.php

Updated DocBlock for getSignature() call to return S3SignatureInterface, because that includes signString().

This helps IDE's that have code inspection features, such as PhpStorm; code such as this wouldn't pass without it:

echo $s3->getSignature()->signString($policy, $credentials);