code: func (r Product_Item_Category) GetPresetConfigurations() (resp []datatypes.Product_Package_Preset_Configuration, err error) {
  	err = r.Session.DoRequest("SoftLayer_Product_Item_Category", "getPresetConfigurations", nil, &r.Options, &resp)
  	return
  }
docs: // Retrieve A list of preset configurations this category is used in.'