update examples

Author: leafo

examples/chat_completions/basic.lua

@@ -1,7 +1,7 @@
 local openai = require("openai")
 local client = openai.new(os.getenv("OPENAI_API_KEY"))
 
-local status, response = client:chat({
+local status, response = client:create_chat_completion({
   {role = "system", content = "You are a Lua programmer"},
   {role = "user", content = "Write a 'Hello world' program in Lua"}
 }, {

examples/chat_completions/streaming.lua

@@ -1,7 +1,7 @@
 local openai = require("openai")
 local client = openai.new(os.getenv("OPENAI_API_KEY"))
 
-client:chat({
+client:create_chat_completion({
   {role = "system", content = "You work for Streak.Club, a website to track daily creative habits"},
   {role = "user", content = "Who do you work for?"}
 }, {

examples/chat_completions/vision.lua

@@ -3,7 +3,7 @@
 local openai = require("openai")
 local client = openai.new(os.getenv("OPENAI_API_KEY"))
 
-local status, response = client:chat({
+local status, response = client:create_chat_completion({
   {
     role = "user",
     content = {