class ActiveModelSerializers::Adapter::JsonApi::Meta

}
attitude: ‘adjustable’
{
structure:
Non-standard meta-information that can not be represented as an attribute or relationship.
description:
JSON Object
definition:
meta

def as_json 

def as_json
  @value
end

def initialize(serializer) 

def initialize(serializer)
  @object = serializer.object
  @scope = serializer.scope
  # Use the return value of the block unless it is nil.
  if serializer._meta.respond_to?(:call)
    @value = instance_eval(&serializer._meta)
  else
    @value = serializer._meta
  end
end