public function buildBaseString($uri, array $parameters = [], $httpMethod = 'POST')
    {
        return $this->getBaseStringBuilder()->build($httpMethod, $uri, $parameters);
    }
public function buildBaseString($uri, array $parameters = [], $httpMethod = 'POST')
    {
        return $this->getBaseStringBuilder()->build($httpMethod, $uri, $parameters);
    }
public function buildBaseString ( $ uri , array $ parameters = [ ] , $ httpMethod = 'POST' ) { return $ this -> getBaseStringBuilder ( ) -> build ( $ httpMethod , $ uri , $ parameters ) ; }
Build the signature base string.

@param \Psr\Http\Message\UriInterface|string $uri
@param array                                 $parameters
@param string                                $httpMethod

@return string
Build the signature base string .