access secretsmanager from lambda

IAM Policies
---
{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "VisualEditor0",
            "Effect": "Allow",
            "Action": "secretsmanager:GetSecretValue",
            "Resource": "*"
        }
    ]
}

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "VisualEditor0",
            "Effect": "Allow",
            "Action": "kms:Decrypt",
            "Resource": "*"
        }
    ]
}


Lambda Code
---
import json
import boto3
import base64

# Your secret's name and region
secret_name = "custom-managed-secret"
region_name = "us-east-1"

#Set up our Session and Client
session = boto3.session.Session()
client = session.client(
    service_name='secretsmanager',
    region_name=region_name
)

def lambda_handler(event, context):

    # Calling SecretsManager
    get_secret_value_response = client.get_secret_value(
        SecretId=secret_name
    )
    
    #Raw Response
    print(get_secret_value_response)
   
    #Extracting the key/value from the secret
    secret = get_secret_value_response['SecretString']
    print(secret)