added schema level lean option

[IslandRhythms]

No description provided.

[IslandRhythms]

It's complaining about one line in model.js that

• I did not touch
• is the comments for the buildBultWriteOperations where the line is the indented @param

The line is 3691 if you want to take a look

[AbdelrahmanHafez]

Nice, thanks! 👍
Can you also add the option to the JSDoc and TS type definitions + TS tests?

Also, what do you think of calling it defaultLean instead of lean?

How would we go about overriding that for a specific query? I think we can .setOptions({ lean: false });, I also think it might be useful to have a .notLean() method that does the reverse of .lean().

[vkarpov15]

Add an extra check in this test that verifies you can still overwrite lean().

So const doc = await Test.findOne().lean(false); assert.ok(entry instanceof mongoose.Document)

Also, no need to do assert.equal(entry instanceof mongoose.Document, false);. Just assert.ok(!entry instanceof mongoose.Document);

[vkarpov15]

Marking this as "Request changes" since I selected the wrong radio button previously.