How to correctly connect the mongoose-sequence plugin?

Question

MongoDB

I was not satisfied with the id (they were long, and I just needed the numbering 1,2,3) that mongoose generates and I installed mongoose-sequence

As a result, I successfully applied for the user schema:

const mongoose = require('mongoose')
const AutoIncrement = require('mongoose-sequence')(mongoose);


const UserSchema = new mongoose.Schema({
    _id: {
        type: Number,
    }
},
{ _id: false }
)

UserSchema.plugin(AutoIncrement);
module.exports = mongoose.model("User", UserSchema)

And for the user successfully interrupts, the main ID.

I did the same for another model, but it throws an error:

const mongoose = require('mongoose')
const AutoIncrement = require('mongoose-sequence')(mongoose)


const PostSchema = new mongoose.Schema({
 _id: {
   type: Number,
}

},
{ _id: false }
)

PostSchema.plugin(AutoIncrement); 
module.exports = mongoose.model("Post", PostSchema)

That error Error: Counter already defined for field "_id" takes off

But I want to kill id in the Post scheme.
Why can I only override in one schema?

There is another method, add a new field PostSchema.plugin(AutoIncrement, { inc_field : 'id'});
But the task is to kill the main ID.