class RSpec::Core::Formatters::Protocol

@see RSpec::Core::Reporter
@see RSpec::Core::Formatters::BaseTextFormatter
@see RSpec::Core::Formatters::BaseFormatter
`::RSpec::Core::Formatters.register self, :start, :example_started`
e.g.
‘::RSpec::Core::Formatters.register class, :list, :of, :notifications`
itself to receive. To register a formatter call:
formatter will only receive those notifications it has registered
reporter will issue these during a normal test suite run, but a
notifications implemented as part of the standard interface. The
This class isn’t loaded at runtime but serves to document all of the