module ActiveModel::Translation

def human_attribute_name(attribute, options = {})

Specify +options+ with additional translating options.

Person.human_attribute_name("first_name") # => "First name"

instead of "first_name".
Transforms attribute names into a more human format, such as "First name" 
def human_attribute_name(attribute, options = {})
  attribute = attribute.to_s
  if attribute.include?(".")
    namespace, _, attribute = attribute.rpartition(".")
    namespace.tr!(".", "/")
    if attribute.present?
      key = "#{namespace}.#{attribute}"
      separator = "/"
    else
      key = namespace
      separator = "."
    end
    defaults = lookup_ancestors.map do |klass|
      :"#{i18n_scope}.attributes.#{klass.model_name.i18n_key}#{separator}#{key}"
    end
    defaults << :"#{i18n_scope}.attributes.#{key}"
    defaults << :"attributes.#{key}"
  else
    defaults = lookup_ancestors.map do |klass|
      :"#{i18n_scope}.attributes.#{klass.model_name.i18n_key}.#{attribute}"
    end
  end
  raise_on_missing = options.fetch(:raise, Translation.raise_on_missing_translations)
  defaults << :"attributes.#{attribute}"
  defaults << options[:default] if options[:default]
  defaults << MISSING_TRANSLATION unless raise_on_missing
  translation = I18n.translate(defaults.shift, count: 1, raise: raise_on_missing, **options, default: defaults)
  if translation == MISSING_TRANSLATION
    translation = attribute.present? ? attribute.humanize : namespace.humanize
  end
  translation
end