The code contains 5 header files, attached here + implementation of the methods. What is the problem is with what I wrote? Header 1 `#pragma once #ifndef
promise
twilio-php
operational-transform
babelfish
vec
cml
length-modifiers
ssi
kotlin-function-type
pandas-ta
phantom-wallet
lmer
mgo
spring-security4
nodemailer
wcf
dlq
google-codelab
technical-indicator
google-people-api
event-channel
undo-redo
microstation
dropdownbox
windows-10-desktop
foundry-actions
numactl
tsyringe
ie-mobile
revit