feat: 初步支持function call（WIP）

utils/tools/AbstractTool.js

@@ -0,0 +1,20 @@
+export class AbstractTool {
+  name = ''
+
+  parameters = {}
+
+  description = ''
+
+  func = async function () {}
+
+  function () {
+    if (!this.parameters.type) {
+      this.parameters.type = 'object'
+    }
+    return {
+      name: this.name,
+      description: this.description,
+      parameters: this.parameters
+    }
+  }
+}