Change initializer to keyword arguments style

Author: naoa

bin/console

@@ -12,7 +12,7 @@ require "cohere"
 # Pry.start
 
 client = Cohere::Client.new(
-  ENV['COHERE_API_KEY']
+  api_key: ENV['COHERE_API_KEY']
 )
 
 require "irb"

lib/cohere/client.rb

@@ -8,7 +8,7 @@ class Client
 
     ENDPOINT_URL = "https://api.cohere.ai/v1"
 
-    def initialize(api_key, timeout: nil)
+    def initialize(api_key:, timeout: nil)
       @api_key = api_key
       @timeout = timeout
     end

spec/cohere/client_spec.rb

@@ -3,7 +3,7 @@
 require "spec_helper"
 
 RSpec.describe Cohere::Client do
-  let(:instance) { described_class.new("123") }
+  let(:instance) { described_class.new(api_key: "123") }
 
   describe "#generate" do
     let(:generate_result) { JSON.parse(File.read("spec/fixtures/generate_result.json")) }