Error in the 'reduceToSingeImageMockFunction'

[LiliGuimaraes]

I've been trying to use the 'reduceToSingeImageMockFunction' follow up the LT-GEE Guide and this doesn't seem to work, applying the basic running LT-GEE script .

[jdbcode]

That isn't an existing function. It is pseudo code - a mock function name used as a placeholder for a real function that you define to reduce an annual set of images to a single image. As an example, you can use .reduce(ee.Reducer.mean()) on an annual ee.ImageCollection.