src/Endpoint/POST/ModuleRecordFileField.php
protected function setFileFieldValue($value)
    {
        if (version_compare(PHP_VERSION, '5.5.0') >= 0){
            if (!($value instanceof \CURLFile)){
                $value = ltrim($value,"@");
                $value = new \CURLFile($value);
            }
        } else {
            if (strpos($value, '@') !== 0) {
                $value = '@'.$value;
            }
        }
        return $value;
    }
protected function setFileFieldValue($value)
    {
        if (version_compare(PHP_VERSION, '5.5.0') >= 0){
            if (!($value instanceof \CURLFile)){
                $value = ltrim($value,"@");
                $value = new \CURLFile($value);
            }
        } else {
            if (strpos($value, '@') !== 0) {
                $value = '@'.$value;
            }
        }
        return $value;
    }
Configure the filepath to have an @ symbol in front if one is not found
@param string $value
@return string