azure-storage-common/src/Common/Internal/Authentication/TokenAuthScheme.php
public function signRequest(Request $request)
    {
        $bearerToken = "Bearer ". $this->tokenRef;
        return $request->withHeader(Resources::AUTHENTICATION, $bearerToken);
    }
public function signRequest(Request $request)
    {
        $bearerToken = "Bearer ". $this->tokenRef;
        return $request->withHeader(Resources::AUTHENTICATION, $bearerToken);
    }
Adds authentication header to the request headers.

@param \GuzzleHttp\Psr7\Request $request HTTP request object.

@abstract

@return \GuzzleHttp\Psr7\Request