feat!: stronger typing for lifecycle rules (googleapis#2215)

Author: ddelgrosso1

src/bucket.ts

@@ -150,6 +150,25 @@ export interface LifecycleRule {
   condition: LifecycleCondition;
 }
 
+export interface LifecycleCondition {
+  age?: number;
+  createdBefore?: Date | string;
+  customTimeBefore?: Date | string;
+  daysSinceCustomTime?: number;
+  daysSinceNoncurrentTime?: number;
+  isLive?: boolean;
+  matchesPrefix?: string[];
+  matchesSuffix?: string[];
+  matchesStorageClass?: string[];
+  noncurrentTimeBefore?: Date | string;
+  numNewerVersions?: number;
+}
+
+export interface LifecycleRule {
+  action: LifecycleAction;
+  condition: LifecycleCondition;
+}
+
 export interface EnableLoggingOptions extends PreconditionOptions {
   bucket?: string | Bucket;
   prefix: string;