nl_tokens: Creates a new instance of {
pl_tokens: function Duration ( months , <mask> , nanoseconds ) { /**
     * Gets the number of months.
     * @type {Number}
     */ this . months = months ; /**
     * Gets the number of days.
     * @type {Number}
     */ this . days = days ; /**
     * Gets the number of nanoseconds represented as a <code>int64</code>.
     * @type {Long}
     */ this . nanoseconds = typeof nanoseconds === 'number' ? Long . fromNumber ( nanoseconds ) : nanoseconds ; }