While a lambda is still processing (archive unpacking etc), the lambda state should be set to "Pending" (currently "Active") and invocations to that lambda should fail (currently, it can end up in a inconsistent state in this case, like lambdas being executed without layers).

Lambda state should reflect the current internal state, and invocations should fail if not active.
lambda_details.vpc_config = data["VpcConfig"]
    if data.get("KMSKeyArn"):
        lambda_details.kms_key_arn = data["KMSKeyArn"]
    if data.get("TracingConfig"):
        lambda_details.tracing_config = data["TracingConfig"]
    lambda_details.last_modified = datetime.utcnow()
    result = data
    lambda_function = region.lambdas.get(arn)
    result.update(format_func_details(lambda_function))
    
    for plugin in lambda_executors.LambdaExecutorPlugin.get_plugins():
        plugin.init_function_configuration(lambda_function)
    return jsonify(result)
def generate_policy_statement(sid, action, arn, sourcearn, principal):
    statement = {
        "Sid": sid,
        "Effect": "Allow",
        "Action": action,
        "Resource": arn,
    }
    
    if sourcearn:
        condition = {"ArnLike": {"AWS:SourceArn": sourcearn}}
        statement["Condition"] = condition
    
    if principal:
        principal = {"Service": principal}
        statement["Principal"] = principal
    return statement
def generate_policy(sid, action, arn, sourcearn, principal):