moved utility to common and updated data_url parsing logic

llama_toolchain/memory/api/api.py

@@ -8,9 +8,6 @@
 #
 # This source code is licensed under the terms described in the LICENSE file in
 # the root directory of this source tree.
-import base64
-import mimetypes
-import os
 from typing import List, Optional, Protocol
 
 from llama_models.schema_utils import json_schema_type, webmethod
@@ -29,21 +26,6 @@ class MemoryBankDocument(BaseModel):
     metadata: Dict[str, Any] = Field(default_factory=dict)
 
 
-def data_url_from_file(file_path: str) -> URL:
-    if not os.path.exists(file_path):
-        raise FileNotFoundError(f"File not found: {file_path}")
-
-    with open(file_path, "rb") as file:
-        file_content = file.read()
-
-    base64_content = base64.b64encode(file_content).decode("utf-8")
-    mime_type, _ = mimetypes.guess_type(file_path)
-
-    data_url = f"data:{mime_type};base64,{base64_content}"
-
-    return URL(uri=data_url)
-
-
 @json_schema_type
 class MemoryBankType(Enum):
     vector = "vector"