src/XSD2PHP/lib/ZF/1.10.7/Zend/Soap/Client.php
public function setUserAgent($userAgent)
    {
        if ($userAgent === null) {
            $this->_user_agent = null;
        } else {
            $this->_user_agent = (string)$userAgent;
        }
        return $this;
    }
public function setUserAgent($userAgent)
    {
        if ($userAgent === null) {
            $this->_user_agent = null;
        } else {
            $this->_user_agent = (string)$userAgent;
        }
        return $this;
    }
Set the string to use in User-Agent header

@param  string|null $userAgent
@return Zend_Soap_Client