Minor fix on index_file and get_file_mime_type()

Author: chandrasekharan-zipstack

src/unstract/sdk/index.py

@@ -112,10 +112,10 @@ def index_file(
         self.tool.stream_log("Extracting text from input file")
         full_text = []
         x2text = X2Text(tool=self.tool)
-        x2text_adapter: X2TextAdapter = x2text.get_x2text(
+        x2text_adapter_inst: X2TextAdapter = x2text.get_x2text(
             adapter_instance_id=x2text_adapter
         )
-        extracted_text = x2text_adapter.process(input_file_path=file_path)
+        extracted_text = x2text_adapter_inst.process(input_file_path=file_path)
         full_text.append(
             {
                 "section": "full",

src/unstract/sdk/utils/tool_utils.py

@@ -80,7 +80,7 @@ def json_to_str(json_to_dump: dict[str, Any]) -> str:
         return compact_json
 
     @staticmethod
-    def get_file_mime_type(self, input_file: Path) -> str:
+    def get_file_mime_type(input_file: Path) -> str:
         """Gets the file MIME type for an input file. Uses libmagic to perform
         the same.