Data transformation (marshalling) and encoding helpers. Provides data transformation and encoding utility functions. Return [PoolByteArray] of a given base64 encoded String. Return utf8 String of a given base64 encoded String. Return [Variant] of a given base64 encoded String. When [code]allow_objects[/code] is [code]true[/code] decoding objects is allowed. [b]WARNING:[/b] Deserialized object can contain code which gets executed. Do not use this option if the serialized object comes from untrusted sources to avoid potential security threats (remote code execution). Return base64 encoded String of a given [PoolByteArray]. Return base64 encoded String of a given utf8 String. Return base64 encoded String of a given [Variant]. When [code]full_objects[/code] is [code]true[/code] encoding objects is allowed (and can potentially include code).