How to use hash function in yara64.exe?

Question

Malware

Hello,
the task is to do a hash search,
according to the link https://cyberdefenses.com/yara-hashing-magic/

import "hash" 

rule REALNOTEPAD {

    meta:
        description = "REAL NOTEPAD"

   

    condition:
        
        filesize < 3KB and
        hash.md5(0, filesize) == "698D51A19D8A121CE581499D7B701668"     
}

query yara64.exe -r md5_match.yara c:\Users\user1\Downloads finds nothing