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when_started hook failed: Psych::SyntaxError: (<unknown>): could not find expected ':' while scanning a simple key at line 5 column 5
/home/zh/.rbenv/versions/2.7.1/lib/ruby/2.7.0/psych.rb:456:in `parse'
(see pry_instance.hooks.errors to debug)

How to improve:

Raise custom exception with more debug information

githubci for rspec/rubocop

allow to configure custom shortener to not define every constant by hand

idea: is to put some constants list and feed it to shortener that will define himself those shorter version constants

# the default one
def shortener(klass_name)
  klass_name.to_s.gsub('::', '')
    .split(/[a-z]/).select { |lt| !lt.empty? }.join
end

shortener(MyClass)
# => MC
shortener(MyModule::MyClass)
# => MMMC
shortener(MyModule::MyModelsNamespace::Module)
# => MMNM