Liskov Subtition Example LSP

Name		Name	Last commit message	Last commit date
Latest commit History 1 Commit
.vscode		.vscode
Data		Data
Enums		Enums
Invoices		Invoices
Models		Models
Repositories		Repositories
Services		Services
.gitignore		.gitignore
ListkovSubtitionExample.csproj		ListkovSubtitionExample.csproj
Program.cs		Program.cs
README.md		README.md

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