How create endpoints in multiple files?

from flask import Flask, jsonify, request, Blueprint

first_blueprint = Blueprint('first_blueprint', __name__)


# notice the change in the route
@first_blueprint.route('/',methods=['GET'])
def obter_livros():
   ...

# notice change in the path
@first_blueprint.route('/',methods=['GET'])
def obter_livro_por_id(id):
    ...


# do the same for the other view functions in the file
# in the other file also create a blueprint

from flask import App
from teste import first_blueprint

app = Flask(__name__)

app.register_blueprint(first_blueprint, url_prefix='/livros')
# register the other blueprint