Macro lambda_permission_action 

lambda_permission_action!() { /* proc-macro */ }

Creates a validated LambdaPermissionAction wrapper for Lambda resource-based policy actions at compile time.

This macro ensures that the action string is properly formatted for Lambda resource-based policies, which control what AWS services and accounts can invoke Lambda functions.

Validation Rules

• String must not be empty
• Must start with “lambda:” prefix
• Common values include “lambda:InvokeFunction” and “lambda:GetFunction”