def METHOD_NAME(project: Optional[str] = None,
                                         opts: Optional[pulumi.InvokeOptions] = None) -> AwaitableGetTransferProjectServiceAccountResult:
    """
    Use this data source to retrieve Storage Transfer service account for this project
    ## Example Usage
    ```python
    import pulumi
    import pulumi_gcp as gcp
    default = gcp.storage.get_transfer_project_service_account()
    pulumi.export("defaultAccount", default.email)
    ```
    :param str project: The project ID. If it is not provided, the provider project is used.
    """
    __args__ = dict()
    __args__['project'] = project
    opts = pulumi.InvokeOptions.merge(_utilities.get_invoke_opts_defaults(), opts)
    __ret__ = pulumi.runtime.invoke('gcp:storage/getTransferProjectServiceAccount:getTransferProjectServiceAccount', __args__, opts=opts, typ=GetTransferProjectServiceAccountResult).value
    return AwaitableGetTransferProjectServiceAccountResult(
        email=pulumi.get(__ret__, 'email'),
        id=pulumi.get(__ret__, 'id'),
        member=pulumi.get(__ret__, 'member'),
        project=pulumi.get(__ret__, 'project'),
        subject_id=pulumi.get(__ret__, 'subject_id'))