feat: Add inputs and outputs to CustomComponent

This commit adds the `inputs` and `outputs` fields to the `CustomComponent` class in the `custom_component.py` file. The `inputs` field is of type `List[Input]` and the `outputs` field is of type `List[Output]`. This change allows for better organization and management of the component's input and output fields.

src/backend/base/langflow/custom/custom_component/custom_component.py

@@ -7,6 +7,7 @@ import yaml
 from cachetools import TTLCache, cachedmethod
 from langchain_core.documents import Document
 from pydantic import BaseModel
+
 from langflow.custom.code_parser.utils import (
     extract_inner_type_from_generic_alias,
     extract_union_types_from_generic_alias,
@@ -17,6 +18,7 @@ from langflow.schema import Record
 from langflow.schema.dotdict import dotdict
 from langflow.services.deps import get_storage_service, get_variable_service, session_scope
 from langflow.services.storage.service import StorageService
+from langflow.template.field.base import Input, Output
 from langflow.utils import validate
 
 if TYPE_CHECKING:
@@ -78,6 +80,9 @@ class CustomComponent(Component):
     """The status of the component. This is displayed on the frontend. Defaults to None."""
     _flows_records: Optional[List[Record]] = None
 
+    inputs: Optional[List[Input]] = None
+    outputs: Optional[List[Output]] = None
+
     def update_state(self, name: str, value: Any):
         if not self.vertex:
             raise ValueError("Vertex is not set")
@@ -464,3 +469,4 @@ class CustomComponent(Component):
             Any: The result of the build process.
         """
         raise NotImplementedError
+        raise NotImplementedError