src/Services/OrganisationService.php
public function getAccessToken($organisationId, Authorisation $authorisation = null)
    {
        return $this->request(
            new GetOrganisationAccessTokenRequest($organisationId, $authorisation)
        );
    }
public function getAccessToken($organisationId, Authorisation $authorisation = null)
    {
        return $this->request(
            new GetOrganisationAccessTokenRequest($organisationId, $authorisation)
        );
    }
@param int           $organisationId
@param Authorisation $authorisation

@return OrganisationAccessToken