interface Encryption {     decrypt(password: string, 
data: string): Promise<string>;     encrypt(password: string, 
data: string): Promise<string>; }  Methods
decrypt
- decrypt(password, data): Promise<string>
- Parameters- password: string
- data: string
 
- Returns Promise<string>
encrypt
- encrypt(password, data): Promise<string>
- Parameters- password: string
- data: string
 
- Returns Promise<string>
An interface