import clr
clr.AddReference('DHI.Solutions.GISManager.UI.Tools.DfsuImportTool')
from DHI.Solutions.GISManager.UI.Tools.DfsuImportTool import *
def DoDfsuImportTool():
    """
    <Script>
    <Author>admin</Author>
    <Description>Please enter script description here</Description>
    </Script>
    """
    gisModule = app.Modules.Get('GIS Manager')
    group = gisModule.DefaultMeshDataProvider.MeshGroupList.Fetch("/MyGroup")
    tool = app.Tools.CreateNew('Import from Dfsu file')
    tool.InputItems.Add(group)
    tool.MeshName = "/MyMesh"
    tool.FilePath = "C:\\flow.dfsu"
    tool.Execute()
    return tool.OutputItems