Docs: Metrics - Invalid AWS Serverless Application Model (SAM) example

[michaelbrewer]

Expected Behaviour

AWS Serverless Application Model (SAM) template.yaml should be valid without errors

Current Behaviour

Current example has missing attributes and generates the following errors.

Code snippet

Resources:
  HelloWorldFunction:
    Type: AWS::Serverless::Function
    Properties:
      Runtime: python3.8
      Environment:
      Variables:
        POWERTOOLS_SERVICE_NAME: payment
        POWERTOOLS_METRICS_NAMESPACE: ServerlessAirline

Possible Solution

Template yaml should be, like in PR #1122 , deployed example is here https://gyft.github.io/aws-lambda-powertools-python/latest/core/metrics/#getting-started

AWSTemplateFormatVersion: "2010-09-09"
Transform: AWS::Serverless-2016-10-31
Resources:
  HelloWorldFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: src/
      Handler: app.lambda_handler
      Runtime: python3.9
      Environment:
        Variables:
          POWERTOOLS_SERVICE_NAME: payment
          POWERTOOLS_METRICS_NAMESPACE: ServerlessAirline

Steps to Reproduce

1. Go to https://awslabs.github.io/aws-lambda-powertools-python/latest/core/metrics/#getting-started
2. Copy template.yml example
3. Run sam validate and cfn-lint

AWS Lambda Powertools for Python version

latest

AWS Lambda function runtime

3.9

Packaging format used

PyPi

Debugging logs

N/A

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