TypeError: table.update is not a function?

[vnugent]

How do I run update <table> set ... ?

class ClimbsSchema extends Schema {
  up() {
    this.table("climbs", (table) => {
      table.specificType("name_vector", "tsvector");    // ok
      table.index(["name_vector"], "name_vector", "GIN"); // ok
      table.update({ name_vector: 'to_tsvector(name)' });  // TypeError: table.update is not a function

    });
  }
...

** edit

I ended up replacing table.update with this and it worked. I still wanted to know if there's a simpler way.

      this.schedule(async (trx) => {
        await Database.table("climbs")
          .transacting(trx)
          .update({ name_vector: "to_tsvector(name)" });
      });