Available in 3ds Max 2011 and higher.
<Simple_Bumpmap_Map__adsk>.m : paramBlock2
<Simple_Bumpmap_Map__adsk>.a : paramBlock2
<Simple_Bumpmap_Map__adsk>.u : paramBlock2
<Simple_Bumpmap_Map__adsk>.mode : integer
<Simple_Bumpmap_Map__adsk>.lights : node array
<Simple_Bumpmap_Map__adsk>.Use_lights : boolean
<Simple_Bumpmap_Map__adsk>.ImplicitLights : node array
<Simple_Bumpmap_Map__adsk>.Bitmap : filename
<Simple_Bumpmap_Map__adsk>.Image_Frame_Number : integer
<Simple_Bumpmap_Map__adsk>.RGBAmount : float
<Simple_Bumpmap_Map__adsk>.Filtering : integer
<Simple_Bumpmap_Map__adsk>.Blur : float
<Simple_Bumpmap_Map__adsk>.Invert : boolean
<Simple_Bumpmap_Map__adsk>.UScale : float
<Simple_Bumpmap_Map__adsk>.VScale : float
<Simple_Bumpmap_Map__adsk>.UOffset : float
<Simple_Bumpmap_Map__adsk>.VOffset : float
<Simple_Bumpmap_Map__adsk>.WAngle : float
<Simple_Bumpmap_Map__adsk>.MapChannel : integer
<Simple_Bumpmap_Map__adsk>.Connection_struct__0000__m : paramBlock2
<Simple_Bumpmap_Map__adsk>.Connection_struct__0001__a : paramBlock2
<Simple_Bumpmap_Map__adsk>.Connection_struct__0002__u : paramBlock2
<Simple_Bumpmap_Map__adsk>.TheList : maxObject array
<Simple_Bumpmap_Map__adsk>.Shader_Version : integer