Do I need to cache `createClient`?

I use turso on the edge (CF Workers). I see a lot of implementations do something like this:

let cached_db = null
export const useDb = () => {
    if (!cached_db){
        const client = createClient({ url, authToken })
        cached_db = drizzle(client, { schema:schema_file })
    }
    return cached_db
}
// And then use it like:
const db = useDb()

let cached_db = null
export const useDb = () => {
    if (!cached_db){
        const client = createClient({ url, authToken })
        cached_db = drizzle(client, { schema:schema_file })
    }
    return cached_db
}
// And then use it like:
const db = useDb()

Is that the right approach? Or can I simply do:

  const client = createClient({ url, authToken })
  export const db = drizzle(client, { schema:schema_file })

  const client = createClient({ url, authToken })
  export const db = drizzle(client, { schema:schema_file })

Like can I call createClient() hundreds of times without issues or I should actually cache it?

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Do I need to cache `createClient`?