require <capabilities: string-list>;
The require action notes that a script makes use of a certain extension. Multiple capabilities can be declared with a single require.
The require command must be used before any other command. An error occurs if a require appears after a command other than require.
require "fileinto";
require "vacation";
Note that the above script is identical to the one below.
require ["fileinto", "reject"];
Core : Requires no import statement
RFC3028