nl_tokens: jsdom window document navigator setup http : // airbnb . io / enzyme / docs / guides / jsdom . html
pl_tokens: function copyProps ( src , target ) { const props = Object . getOwnPropertyNames ( src ) . filter ( prop => typeof target [ prop ] === 'undefined' ) . reduce ( ( result , prop ) => R . merge ( result , { [ prop ] : <mask> . getOwnPropertyDescriptor ( src , prop ) } ) , { } ) ; Object . defineProperties ( target , props ) ; }