BackupPlan constructor
      
      BackupPlan({ 
    
    
- List<BackupRule> ? backupRules,
- String? backupVault,
- String? backupVaultServiceAccount,
- String? createTime,
- String? description,
- String? etag,
- Map<String, String> ? labels,
- String? logRetentionDays,
- String? name,
- String? resourceType,
- String? revisionId,
- String? revisionName,
- String? state,
- List<String> ? supportedResourceTypes,
- String? updateTime,
Implementation
BackupPlan({
  this.backupRules,
  this.backupVault,
  this.backupVaultServiceAccount,
  this.createTime,
  this.description,
  this.etag,
  this.labels,
  this.logRetentionDays,
  this.name,
  this.resourceType,
  this.revisionId,
  this.revisionName,
  this.state,
  this.supportedResourceTypes,
  this.updateTime,
});