aws sam-cli layers v1.40.1 - amazon-web-services

Question

I am using aws sam cli in version 1.40.1 and I notice that the way in which the layers are defined changed and that is why I can no longer import my code that is in that layer and I get the following error:
START RequestId: 35e6d7dc-99e8-4966-b51d-02cb8c39adf8 Version: $LATEST
Traceback (most recent call last): Unable to import module 'app': No module named 'Citas'
{"errorMessage": "Unable to import module 'app': No module named 'Citas'", "errorType": "Runtime.ImportModuleError", "stackTrace": []}END RequestId: 35e6d7dc-99e8-4966-b51d-02cb8c39adf8
REPORT RequestId: 35e6d7dc-99e8-4966-b51d-02cb8c39adf8 Init Duration: 0.22 ms Duration: 201.65 ms Billed Duration: 202 ms Memory Size: 128 MB Max Memory Used: 128 MB
I did not have this problem in version 0.53.0 of this tool and that was given that when building if you mount the layers without problems and could access the classes easily.
I share here the lambda configuration.
template.yml
AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: >
citas
Sample SAM Template for citas
# More info about Globals: https://github.com/awslabs/serverless-application-model/blob/master/docs/globals.rst
Globals:
Function:
Timeout: 3
Resources:
HelloWorldFunction:
Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
Properties:
CodeUri: hello_world/
Handler: app.lambda_handler
Runtime: python3.7
Layers:
- !Ref CitasLayer
CitasLayer:
Type: AWS::Serverless::LayerVersion
Properties:
Description: Capa que se encarga de la gestion de citas
ContentUri: layer
RetentionPolicy: Retain
CompatibleRuntimes:
- python3.7
tree
app.py
from Citas import say_hellow
# import requests
import glob
def lambda_handler(event, context):
return say_hellow()
If anyone has managed to work with this version and knows how things are done nowadays I would appreciate it, because the change was important.