class RuboCop::Cop::Lint::BooleanSymbol

false
# good
:false
# bad
@example
true
# good
:true
# bad
@example
In most cases it would be a typo.
This cop checks for ‘:true` and `:false` symbols.

def on_sym(node) 

def on_sym(node)
  return unless boolean_symbol?(node)
  add_offense(node, message: format(MSG, boolean: node.value))
end