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<?php
namespace LeanCloud\Operation;
/**
* Operation Interface
*/
interface IOperation {
/**
* Encode to JSON represented operation
*
* @return array
*/
public function encode();
/**
* Apply this operation on an old value
*
* @param mixed $oldval
* @return mixed
*/
public function applyOn($oldval);
/**
* Merge this operation into a (previous) operation
*
* @param IOperation $prevOp
* @return IOperation
*/
public function mergeWith($prevOp);
}