Add modify assistant support

Author: Haegin

lib/openai/assistants.rb

@@ -16,6 +16,10 @@ def create(parameters: {})
       @client.json_post(path: "/assistants", parameters: parameters)
     end
 
+    def modify(id:, parameters: {})
+      @client.json_post(path: "/assistants/#{id}", parameters: parameters)
+    end
+
     def delete(id:)
       @client.delete(path: "/assistants/#{id}")
     end

spec/fixtures/cassettes/assistants_modify.yml

@@ -37,6 +37,23 @@
       end
     end
 
+    describe "#modify" do
+      let(:cassette) { "assistants modify" }
+      let(:response) do
+        OpenAI::Client.new.assistants.modify(
+          id: "asst_SGTQseRVgIIasVsVHPDtQNis",
+          parameters: { model: "gpt-3.5-turbo", name: "Test Assistant for OpenAI-Ruby" }
+        )
+      end
+
+      it "succeeds" do
+        VCR.use_cassette(cassette) do
+          expect(response["object"]).to eq "assistant"
+          expect(response["id"]).to eq "asst_SGTQseRVgIIasVsVHPDtQNis"
+        end
+      end
+    end
+
     describe "#delete" do
       let(:cassette) { "assistants delete" }
       let(:response) do