Creating in-memory QgsRasterlayer from the rasterization of a QgsVectorLayer with PyQGIS?

I am currently building a QGIS plugin and I need to rasterize a vector layer where the output will be stored in memory.

To do so, I tried this (which come from the answer from this link) :

temp = processing.run("gdal:rasterize",
                           {"INPUT": input_shapefile,
                            "FIELD": "OBJECTID",
                            "UNITS": 1,
                            "WIDTH": resolution,
                            "HEIGHT": resolution,
                            "EXTENT": "%f,%f,%f,%f" % (xmin, xmax, ymin, ymax),
                            "NODATA": -99,
                            "OUTPUT": None})

The problem is that it does not work : None is not recognized as a valid output. I also tried "OUTPUT" : "memory" but it is not working neither... So I wonder if this answer that I found in the link above is correct ?

Note : QGIS version : 3.4.7 with Python 3.7

Solution

I found an aswer to my question using "tempfile.TemporaryDirectory()" in the following way :

tf = tempfile.TemporaryDirectory()
tfolder = tf.name + "\\rasterisation.tif"
temp = processing.run("gdal:rasterize",
                       {"INPUT": input_shapefile,
                        "FIELD": "OBJECTID",
                        "UNITS": 1,
                        "WIDTH": resolution,
                        "HEIGHT": resolution,
                        "EXTENT": "%f,%f,%f,%f" % (xmin, xmax, ymin, ymax),
                        "NODATA": -99,
                        "OUTPUT": tfolder})
 rlayer = self.iface.addRasterLayer(tfolder, "Rasterisation")

See this link for more information on this module.