code: func (d *ResourceData) Get(key string) interface{} {
  	v, _ := d.GetOk(key)
  	return v
  }
docs: // Get returns the data for the given key, or nil if the key doesn't exist
  // in the schema.
  //
  // If the key does exist in the schema but doesn't exist in the configuration,
  // then the default value for that type will be returned. For strings, this is
  // "", for numbers it is 0, etc.
  //
  // If you want to test if something is set at all in the configuration,
  // use GetOk.