module T::Private::ErrorHandler

def self.handle_sig_validation_error(error, opts={})

is unset, this method will call handle_sig_validation_error_default.
behavior when a sig build fails. If T::Configuration.sig_validation_error_handler
Handle a sig build validation failure. This allows users to override the 
def self.handle_sig_validation_error(error, opts={})
  T::Configuration.sig_validation_error_handler(error, opts)
  nil
end