import { StaticCode } from './opcode';
/**
 * Concatenates two strings. disabled.
 */
export declare class OP_CAT extends StaticCode {
    constructor();
}
/**
 * Returns a section of a string. disabled.
 */
export declare class OP_SUBSTR extends StaticCode {
    constructor();
}
/**
 * Keeps only characters left of the specified point in a string. disabled.
 */
export declare class OP_LEFT extends StaticCode {
    constructor();
}
/**
 * Keeps only characters right of the specified point in a string. disabled.
 */
export declare class OP_RIGHT extends StaticCode {
    constructor();
}
/**
 * Pushes the string length of the top element of the stack (without popping it).
 */
export declare class OP_SIZE extends StaticCode {
    constructor();
}
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