module ActiveRecord::Encryption::Configurable

def configure(primary_key: nil, deterministic_key: nil, key_derivation_salt: nil, **properties) # :nodoc:

:nodoc:
def configure(primary_key: nil, deterministic_key: nil, key_derivation_salt: nil, **properties) # :nodoc:
  config.primary_key = primary_key
  config.deterministic_key = deterministic_key
  config.key_derivation_salt = key_derivation_salt
  # Set the default for this property here instead of in +Config#set_defaults+ as this needs
  # to happen *after* the keys have been set.
  properties[:support_sha1_for_non_deterministic_encryption] = true if properties[:support_sha1_for_non_deterministic_encryption].nil?
  properties.each do |name, value|
    ActiveRecord::Encryption.config.send "#{name}=", value if ActiveRecord::Encryption.config.respond_to?("#{name}=")
  end
  ActiveRecord::Encryption.reset_default_context
  properties.each do |name, value|
    ActiveRecord::Encryption.context.send "#{name}=", value if ActiveRecord::Encryption.context.respond_to?("#{name}=")
  end
end

def encrypted_attribute_was_declared(klass, name) # :nodoc:

:nodoc:
def encrypted_attribute_was_declared(klass, name) # :nodoc:
  self.encrypted_attribute_declaration_listeners&.each do |block|
    block.call(klass, name)
  end
end

def on_encrypted_attribute_declared(&block)

end
...
ActiveRecord::Encryption.on_encrypted_attribute_declared do |klass, attribute_name|

=== Example

Register callback to be invoked when an encrypted attribute is declared.
def on_encrypted_attribute_declared(&block)
  self.encrypted_attribute_declaration_listeners ||= Concurrent::Array.new
  self.encrypted_attribute_declaration_listeners << block
end