helper

type MapData map[string]interface{}

type ResourceData interface {

	// IsNewResource reports whether or not the resource is seen for the first
	// time.
	IsNewResource() bool

	// HasChange reports whether or not the given key has been changed.
	HasChange(key string) bool

	// GetChange returns the old and new value for a given key.
	GetChange(key string) (interface{}, interface{})

	// Get returns the data for the given key, or nil if the key doesn't exist
	// in the schema.
	Get(key string) interface{}

	// GetOk returns the data for the given key and whether or not the key
	// has been set to a non-zero value at some point.
	GetOk(key string) (interface{}, bool)

	// GetOkExists returns the data for a given key and whether or not the key
	// has been set to a non-zero value. This is only useful for determining
	// if boolean attributes have been set, if they are Optional but do not
	// have a Default value.
	GetOkExists(key string) (interface{}, bool)

	// Set sets the value for the given key.
	//
	// If the key is invalid or the value is not a correct type, an error
	// will be returned.
	Set(key string, value interface{}) error
}