module ActiveSupport::Multibyte 
        
        Public class methods
Returns the current proxy class.
Source code GitHub
# File activesupport/lib/active_support/multibyte.rb, line 23
def self.proxy_class
  @proxy_class ||= ActiveSupport::Multibyte::Chars
end
            The proxy class returned when calling mb_chars. You can use this accessor to configure your own proxy class so you can support other encodings. See the ActiveSupport::Multibyte::Chars implementation for an example how to do this.
ActiveSupport::Multibyte.proxy_class = CharsForUTF32
Source code GitHub
# File activesupport/lib/active_support/multibyte.rb, line 14
def self.proxy_class=(klass)
  ActiveSupport.deprecator.warn(
    "ActiveSupport::Multibyte.proxy_class= is deprecated and will be removed in Rails 8.2. " \
    "Use normal string methods instead."
  )
  @proxy_class = klass
end