feat: HTTP request tool

packages/@n8n/nodes-langchain/nodes/tools/ToolHttpRequest/interfaces.ts

@@ -0,0 +1,23 @@
+export type ToolParameter = {
+	name: string;
+	required: boolean;
+	type?: string;
+	description?: string;
+	sendIn: SendIn;
+	key?: string;
+};
+
+export type PlaceholderDefinition = {
+	name: string;
+	type?: string;
+	description: string;
+};
+
+export type ParametersValues = Array<{
+	name: string;
+	valueProvider: 'modelRequired' | 'modelOptional' | 'fieldValue';
+	value?: string;
+}>;
+
+export type ParameterInputType = 'keypair' | 'json' | 'model';
+export type SendIn = 'body' | 'qs' | 'path' | 'headers';