Adding support for LLM Caching.

packages/components/nodes/llmcache/LocalMemoryCache/LocalMemoryCache.ts

@@ -0,0 +1,44 @@
+import { INode, INodeData, INodeOutputsValue, INodeParams } from '../../../src/Interface'
+import { InMemoryCache } from 'langchain/cache'
+import { getBaseClasses } from '../../../src'
+
+class LocalMemoryCache implements INode {
+    label: string
+    name: string
+    version: number
+    description: string
+    type: string
+    icon: string
+    category: string
+    baseClasses: string[]
+    inputs: INodeParams[]
+    outputs: INodeOutputsValue[]
+    inMemoryCache: any
+
+    constructor() {
+        this.label = 'Local (Builtin) Cache'
+        this.name = 'localCache'
+        this.version = 1.0
+        this.type = 'LLMCache'
+        this.icon = 'memorycache.png'
+        this.category = 'LLM Cache'
+        this.baseClasses = [this.type, 'LLMCacheBase']
+        this.inputs = []
+        this.outputs = [
+            {
+                label: 'LLM Cache',
+                name: 'cache',
+                baseClasses: [this.type, ...getBaseClasses(InMemoryCache)]
+            }
+        ]
+    }
+
+    async init(nodeData: INodeData): Promise<any> {
+        if (!this.inMemoryCache) {
+            this.inMemoryCache = InMemoryCache.global()
+        }
+        return this.inMemoryCache
+    }
+}
+
+module.exports = { nodeClass: LocalMemoryCache }