diff --git a/src/multilspy/language_server.py b/src/multilspy/language_server.py
index b584b89..e6faf7a 100644
--- a/src/multilspy/language_server.py
+++ b/src/multilspy/language_server.py
@@ -51,44 +51,6 @@ from serena.text_utils import MatchedConsecutiveLines, search_files
 
 
 
-GenericDocumentSymbol = Union[LSPTypes.DocumentSymbol, LSPTypes.SymbolInformation, multilspy_types.UnifiedSymbolInformation]
-
-@dataclasses.dataclass(kw_only=True)
-class ReferenceInSymbol:
-    """A symbol retrieved when requesting reference to a symbol, together with the location of the reference"""
-    symbol: multilspy_types.UnifiedSymbolInformation
-    line: int
-    character: int
-    
-@dataclasses.dataclass
-class LSPFileBuffer:
-    """
-    This class is used to store the contents of an open LSP file in memory.
-    """
-
-    # uri of the file
-    uri: str
-
-    # The contents of the file
-    contents: str
-
-    # The version of the file
-    version: int
-
-    # The language id of the file
-    language_id: str
-
-    # reference count of the file
-    ref_count: int
-
-    # --------------------------------- MODIFICATIONS BY MISCHA ---------------------------------
-
-    content_hash: str = ""
-
-    def __post_init__(self):
-        self.content_hash = hashlib.md5(self.contents.encode('utf-8')).hexdigest()
-
-
 class LanguageServer:
     """
     The LanguageServer class provides a language agnostic interface to the Language Server Protocol.
diff --git a/src/solidlsp/ls.py b/src/solidlsp/ls.py
index cc792db..610c60e 100644
--- a/src/solidlsp/ls.py
+++ b/src/solidlsp/ls.py
@@ -1,3 +1,5 @@
+import dataclasses
+import hashlib
 import json
 import logging
 import os
@@ -11,12 +13,11 @@ from collections.abc import Iterator
 from contextlib import contextmanager
 from copy import copy
 from pathlib import Path, PurePath
-from typing import Self, cast
+from typing import Self, Union, cast
 
 import pathspec
 import tqdm
 
-from multilspy.language_server import GenericDocumentSymbol, LSPFileBuffer, ReferenceInSymbol
 from serena.text_utils import MatchedConsecutiveLines, search_files
 from solidlsp import multilspy_types
 from solidlsp.ls_handler import SolidLanguageServerHandler
@@ -34,6 +35,44 @@ from solidlsp.multilspy_exceptions import MultilspyException
 from solidlsp.multilspy_logger import MultilspyLogger
 from solidlsp.multilspy_utils import FileUtils, PathUtils, TextUtils
 
+GenericDocumentSymbol = Union[LSPTypes.DocumentSymbol, LSPTypes.SymbolInformation, multilspy_types.UnifiedSymbolInformation]
+
+
+@dataclasses.dataclass(kw_only=True)
+class ReferenceInSymbol:
+    """A symbol retrieved when requesting reference to a symbol, together with the location of the reference"""
+
+    symbol: multilspy_types.UnifiedSymbolInformation
+    line: int
+    character: int
+
+
+@dataclasses.dataclass
+class LSPFileBuffer:
+    """
+    This class is used to store the contents of an open LSP file in memory.
+    """
+
+    # uri of the file
+    uri: str
+
+    # The contents of the file
+    contents: str
+
+    # The version of the file
+    version: int
+
+    # The language id of the file
+    language_id: str
+
+    # reference count of the file
+    ref_count: int
+
+    content_hash: str = ""
+
+    def __post_init__(self):
+        self.content_hash = hashlib.md5(self.contents.encode("utf-8")).hexdigest()
+
 
 class SolidLanguageServer(ABC):
     """