## Trainer
```plantuml
@startuml
hide circle
skinparam class {
BackgroundColor White
BorderColor Black
ArrowColor Black
}
class Trainer #lightGreen
{
id
employeeId
createdAt
authorId
}
class Training
{
...
type : Internal / External
trainerId
}
class Session
{
...
trainerId
}
class Registration
Trainer -- Training
Trainer -- Session
Session -- Registration
Training -r- Session
Registration -- Training
@enduml
```