Added logic to handle lib & class declaration

src/runtime/abc/runtime_service_abc.py

@@ -1,5 +1,10 @@
 from abc import ABC, abstractmethod
 
+from cpl_core.console.console import Console
+from cpl_core.console.foreground_color_enum import ForegroundColorEnum
+
+from runtime.model.error import Error
+
 
 class RuntimeServiceABC(ABC):
 
@@ -13,3 +18,15 @@ class RuntimeServiceABC(ABC):
     @line_count.setter
     @abstractmethod
     def line_count(self, line_count: int): pass
+
+    @abstractmethod
+    def input(self, prefix: str) -> str: pass
+
+    @abstractmethod
+    def output(self, text: str): pass
+
+    @abstractmethod
+    def error(self, error: Error): pass
+
+    @abstractmethod
+    def runtime_error(self, error: Error): pass