require 'appwrite'

client = Appwrite::Client.new()

client
    .set_endpoint('https://[HOSTNAME_OR_IP]/v1') # Your API Endpoint
    .set_project('5df5acd0d48c2') # Your project ID
    .set_key('919c2d18fb5d4...a2ae413da83346ad2') # Your secret API key
;

users = Appwrite::Users.new(client);

response = users.update_email(user_id: '[USER_ID]', email: 'email@example.com');

puts response