how and should set client to a local var?

[miniboxhaha]

think there need use minio in different methods,do i need or should make a client in each method?

funtion a(){
  ...some code

  minio::s3::BaseUrl base_url(host, false);
  minio::creds::StaticProvider provider(user, pwd);
  minio::s3::Client client(base_url, &provider);
  //use cilent do something

  ...somecode
}

funtion b(){
  ...some code

  minio::s3::BaseUrl base_url(host, false);
  minio::creds::StaticProvider provider(user, pwd);
  minio::s3::Client client(base_url, &provider);
  //use cilent do something

  ...somecode
}

without use global var, is there a way make it easy?