LibraryDefinition:
    IsPublic: <True, False>
    Name: <NAME>

ClassDefinition:
    IsPublic: <True, False>
    Name: <NAME>
        Instructions: <LIST OF SUB AST>

FunctionDefinition:
    IsPublic: <True, False>
    Name: <NAME>
        Arguments: <LIST OF VariableDefinition>
        ReturnType: <Bool, String, Num, Empty, Any>
        Instructions: <LIST OF SUB AST>

VariableDefinition:
    IsPublic: <True, False>
    Name: <NAME>
        Type: <Bool, String, Num, Empty, Any>
        Value: <LIST OF SUB AST>
        IsAbleToBeEmpty: <True, False>

FunctionCall:
    Function: <NAME, ID>
    Arguments: <LIST OF SUB AST>

Assignment:
    Target: <NAME, ID>
    Value:  <LIST OF SUB AST>

Operation:
    Type: <+, -, *, />
    Arguments: <LIST OF SUB AST>

Value:
    Value: <1-9, '', true/false>
    Type: <Bool, String, Number>