Changes in version 0.1.0                        

  - Breaking change: Renamed all functions to use sm_ prefix for
    consistency
      - create_secret() → sm_secret_create()
      - get_secret() → sm_secret_get()
      - list_secrets() → sm_secret_ls()
      - add_version() → sm_secret_version_add()
      - get_version() → sm_secret_version_get()
      - list_versions() → sm_secret_version_ls()
      - delete_version() → sm_secret_version_delete()
      - delete_secret() → sm_secret_delete()
  - Added S3 class system for better object-oriented handling of secrets
  - Added project management functions sm_project_set() and
    sm_project_get()
  - Enhanced error handling with more informative messages
  - Improved secret metadata handling and type validation
  - Fixed issues with secret version retrieval and deletion
  - Streamlined authentication process

                        Changes in version 0.0.2                        

  - Added secret class with specialized methods
  - Implemented secure print method to hide secret values in R output
  - Added support for secret metadata
  - Enhanced error messages and token handling
  - Improved documentation and examples

                        Changes in version 0.0.1                        

  - Initial release with core Google Cloud Secret Manager integration
  - Basic secret management: creation, versioning, and retrieval
  - Integration with gargle for authentication
  - Support for multiple auth methods (Application Default Credentials,
    Service Account, Explicit Token)
  - Basic project management functionality