return {
  summary = 'Set the direction vector of the Source.',
  description = 'Sets the direction vector of the Source (the direction it\'s playing in).',
  arguments = {
    {
      name = 'x',
      type = 'number',
      description = 'The x component of the direction vector.'
    },
    {
      name = 'y',
      type = 'number',
      description = 'The y component of the direction vector.'
    },
    {
      name = 'z',
      type = 'number',
      description = 'The z component of the direction vector.'
    }
  },
  returns = {}
}
