extract table names from db.query

Hi all, I want to extract the name of a table like this

this.db.query

this.db.query

this.db.query

this.db.query

however if I were to do this

type model = typeof this.db.query

type model = typeof this.db.query

type model = typeof this.db.query

type model = typeof this.db.query

it gives me a readonly version of what I really want, and because my goal is to do something like this

  async findById(id: Id) {
    return await this.db.query[<dynamic key>].findFirst({});
  }

  async findById(id: Id) {
    return await this.db.query[<dynamic key>].findFirst({});
  }

  async findById(id: Id) {
    return await this.db.query[<dynamic key>].findFirst({});
  }

  async findById(id: Id) {
    return await this.db.query[<dynamic key>].findFirst({});
  }

however this is unsuccessful because the when I try to use the

type Model

type Model

type Model

type Model from above it gets angry because

this.db.query[model].findFirst

this.db.query[model].findFirst

this.db.query[model].findFirst

this.db.query[model].findFirst gives me the readonly value, but I want a non readonly value so I can use it properly. Any help is appreciated