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class method

Gem.use_psych?

use_psych?

# File tmp/rubies/ruby-4.1.0-preview1/lib/rubygems.rb, line 649
def self.use_psych?
  @use_psych || false
end

Returns true if the Psych YAML parser is enabled via configuration.

See also .use_paths .user_dir .use_gemdeps .user_home