dryRunModifiers
Specifies the modifiers to apply to the dry run operation. DryRunModifiers is an optional parameter that only applies when DryRun is set to true.
When set to IGNORE_CIPHERTEXT, KMS performs only authorization validation without ciphertext validation. This allows you to test permissions without requiring a valid ciphertext blob.
To learn more about how to use this parameter, see Testing your permissions in the Key Management Service Developer Guide.