diff --git a/generate.py b/generate.py
index 9c0e8d4..4d39cbe 100755
--- a/generate.py
+++ b/generate.py
@@ -61,12 +61,14 @@ def generate_protocol(output: str) -> None:
         ]
     )
 
+    enumerations = {e['name']: e for e in lsp_json['enumerations']}
+
     content += '\n\n\n'
     content += '\n\n\n'.join(generate_enumerations(lsp_json['enumerations'], ENUM_OVERRIDES))
     content += '\n\n'
-    content += '\n'.join(generate_type_aliases(lsp_json['typeAliases'], ALIAS_OVERRIDES))
+    content += '\n'.join(generate_type_aliases(lsp_json['typeAliases'], ALIAS_OVERRIDES, enumerations))
     content += '\n\n\n'
-    content += '\n\n\n'.join(generate_structures(lsp_json['structures']))
+    content += '\n\n\n'.join(generate_structures(lsp_json['structures'], enumerations))
     content += '\n'
     content += '\n'.join(get_new_literal_structures())
 
@@ -101,10 +103,12 @@ def generate_custom(output: str) -> None:
     requests = sorted(lsp_json['requests'], key=itemgetter('typeName'))
     notifications = sorted(lsp_json['notifications'], key=itemgetter('typeName'))
 
+    enumerations = {e['name']: e for e in lsp_json['enumerations']}
+
     content += '\n\n\n'
-    content += '\n\n\n'.join(generate_requests_and_responses(requests))
+    content += '\n\n\n'.join(generate_requests_and_responses(requests, enumerations))
     content += '\n\n\n'
-    content += '\n\n\n'.join(generate_notifications(notifications))
+    content += '\n\n\n'.join(generate_notifications(notifications, enumerations))
     content += '\n'
 
     # Remove trailing spaces.
diff --git a/generated/lsp_types.py b/generated/lsp_types.py
index e5d46c2..042ab4e 100644
--- a/generated/lsp_types.py
+++ b/generated/lsp_types.py
@@ -1249,7 +1249,7 @@ class FoldingRange(TypedDict):
     """
     endCharacter: NotRequired[Uint]
     """The zero-based character offset before the folded range ends. If not defined, defaults to the length of the end line."""
-    kind: NotRequired['FoldingRangeKind']
+    kind: NotRequired[Union[str, FoldingRangeKind]]
     """
     Describes the kind of the folding range such as 'comment' or 'region'. The kind
     is used to categorize folding ranges and used by commands like 'Fold all comments'.
@@ -3322,7 +3322,7 @@ class CodeAction(TypedDict):
 
     title: str
     """A short, human-readable, title for this code action."""
-    kind: NotRequired['CodeActionKind']
+    kind: NotRequired[Union[str, CodeActionKind]]
     """
     The kind of the code action.
 
@@ -3389,7 +3389,7 @@ class CodeActionRegistrationOptions(TypedDict):
     A document selector to identify the scope of the registration. If set to null
     the document selector provided on the client side will be used.
     """
-    codeActionKinds: NotRequired[List['CodeActionKind']]
+    codeActionKinds: NotRequired[List[Union[str, CodeActionKind]]]
     """
     CodeActionKinds that this server may return.
 
@@ -4624,7 +4624,7 @@ class TextDocumentItem(TypedDict):
 
     uri: DocumentUri
     """The text document's uri."""
-    languageId: 'LanguageKind'
+    languageId: Union[str, LanguageKind]
     """The text document's language identifier."""
     version: int
     """
@@ -4804,7 +4804,7 @@ class ServerCapabilities(TypedDict):
     server.
     """
 
-    positionEncoding: NotRequired['PositionEncodingKind']
+    positionEncoding: NotRequired[Union[str, PositionEncodingKind]]
     """
     The position encoding the server picked from the encodings offered
     by the client via the client capability `general.positionEncodings`.
@@ -4987,7 +4987,7 @@ class FileSystemWatcher(TypedDict):
 
     @since 3.17.0 support for relative patterns.
     """
-    kind: NotRequired['WatchKind']
+    kind: NotRequired[Union[Uint, WatchKind]]
     """
     The kind of events of interest. If omitted it defaults
     to WatchKind.Create | WatchKind.Change | WatchKind.Delete
@@ -5419,7 +5419,7 @@ class CodeActionContext(TypedDict):
     that these accurately reflect the error state of the resource. The primary parameter
     to compute code actions is the provided range.
     """
-    only: NotRequired[List['CodeActionKind']]
+    only: NotRequired[List[Union[str, CodeActionKind]]]
     """
     Requested kind of actions to return.
 
@@ -5452,7 +5452,7 @@ class CodeActionDisabled(TypedDict):
 class CodeActionOptions(TypedDict):
     """Provider options for a {@link CodeActionRequest}."""
 
-    codeActionKinds: NotRequired[List['CodeActionKind']]
+    codeActionKinds: NotRequired[List[Union[str, CodeActionKind]]]
     """
     CodeActionKinds that this server may return.
 
@@ -6123,7 +6123,7 @@ class CodeActionKindDocumentation(TypedDict):
     @proposed
     """
 
-    kind: 'CodeActionKind'
+    kind: Union[str, CodeActionKind]
     """
     The kind of the code action being documented.
 
@@ -6513,7 +6513,7 @@ class GeneralClientCapabilities(TypedDict):
 
     @since 3.16.0
     """
-    positionEncodings: NotRequired[List['PositionEncodingKind']]
+    positionEncodings: NotRequired[List[Union[str, PositionEncodingKind]]]
     """
     The position encodings supported by the client. Client and server
     have to agree on the same position encoding to ensure that offsets
@@ -7886,7 +7886,7 @@ class ClientCodeLensResolveOptions(TypedDict):
 class ClientFoldingRangeKindOptions(TypedDict):
     """@since 3.18.0"""
 
-    valueSet: NotRequired[List['FoldingRangeKind']]
+    valueSet: NotRequired[List[Union[str, FoldingRangeKind]]]
     """
     The folding range kind values the client supports. When this
     property exists the client also guarantees that it will
@@ -8003,7 +8003,7 @@ class ClientSignatureParameterInformationOptions(TypedDict):
 class ClientCodeActionKindOptions(TypedDict):
     """@since 3.18.0"""
 
-    valueSet: List['CodeActionKind']
+    valueSet: List[Union[str, CodeActionKind]]
     """
     The code action kind values the client supports. When this
     property exists the client also guarantees that it will
diff --git a/lsp_schema.py b/lsp_schema.py
index c23578d..8cfe6a3 100644
--- a/lsp_schema.py
+++ b/lsp_schema.py
@@ -225,6 +225,7 @@ class MetaModel(TypedDict):
 
 EveryType = (
     BaseType
+    | EnumerationType
     | ReferenceType
     | ArrayType
     | MapType
diff --git a/utils/generate_notifications.py b/utils/generate_notifications.py
index 78c2371..87c7104 100644
--- a/utils/generate_notifications.py
+++ b/utils/generate_notifications.py
@@ -5,16 +5,17 @@
 from utils.helpers import indentation
 
 if TYPE_CHECKING:
+    from lsp_schema import Enumeration
     from lsp_schema import Notification
 
 
-def generate_notifications(notifications: list[Notification]) -> list[str]:
+def generate_notifications(notifications: list[Notification], enumerations: dict[str, Enumeration]) -> list[str]:
     client_notification_names: list[str] = []
     server_notification_names: list[str] = []
     definitions: list[str] = []
     for notification in notifications:
         message_direction = notification['messageDirection']
-        name, definition = generate_notification(notification)
+        name, definition = generate_notification(notification, enumerations)
         if message_direction == 'clientToServer':
             client_notification_names.append(name)
         elif message_direction == 'serverToClient':
@@ -32,14 +33,14 @@ def generate_notifications(notifications: list[Notification]) -> list[str]:
     ]
 
 
-def generate_notification(notification: Notification) -> tuple[str, str]:
+def generate_notification(notification: Notification, enumerations: dict[str, Enumeration]) -> tuple[str, str]:
     method = notification['method']
     params = notification.get('params')
     name = notification['typeName']
     definition = f'class {name}(TypedDict):\n'
     definition += f"{indentation}method: Literal['{method}']\n"
     if params:
-        definition += f'{indentation}params: {format_type(params, {"root_symbol_name": ""})}'
+        definition += f'{indentation}params: {format_type(params, {"enumerations": enumerations})}'
     else:
         definition += f'{indentation}params: None'
     return (name, definition)
diff --git a/utils/generate_requests_and_responses.py b/utils/generate_requests_and_responses.py
index 454c583..7fce0cd 100644
--- a/utils/generate_requests_and_responses.py
+++ b/utils/generate_requests_and_responses.py
@@ -5,10 +5,11 @@
 from utils.helpers import indentation
 
 if TYPE_CHECKING:
+    from lsp_schema import Enumeration
     from lsp_schema import Request
 
 
-def generate_requests_and_responses(requests: list[Request]) -> list[str]:
+def generate_requests_and_responses(requests: list[Request], enumerations: dict[str, Enumeration]) -> list[str]:
     client_request_names: list[str] = []
     server_request_names: list[str] = []
     client_response_names: list[str] = []
@@ -18,7 +19,7 @@ def generate_requests_and_responses(requests: list[Request]) -> list[str]:
     for request in requests:
         message_direction = request['messageDirection']
         # Requests
-        req_name, req_definition = generate_request(request)
+        req_name, req_definition = generate_request(request, enumerations)
         if message_direction == 'clientToServer':
             client_request_names.append(req_name)
         elif message_direction == 'serverToClient':
@@ -28,7 +29,7 @@ def generate_requests_and_responses(requests: list[Request]) -> list[str]:
             server_request_names.append(req_name)
         req_definitions.append(req_definition)
         # Responses
-        res_name, res_definition = generate_response(request)
+        res_name, res_definition = generate_response(request, enumerations)
         if message_direction == 'clientToServer':
             server_response_names.append(res_name)
         elif message_direction == 'serverToClient':
@@ -51,20 +52,20 @@ def generate_requests_and_responses(requests: list[Request]) -> list[str]:
     ]
 
 
-def generate_request(request: Request) -> tuple[str, str]:
+def generate_request(request: Request, enumerations: dict[str, Enumeration]) -> tuple[str, str]:
     method = request['method']
     params = request.get('params')
     name = request['typeName']
     definition = f'class {name}(TypedDict):\n'
     definition += f"{indentation}method: Literal['{method}']\n"
     if params:
-        definition += f'{indentation}params: {format_type(params, {"root_symbol_name": ""})}'
+        definition += f'{indentation}params: {format_type(params, {"enumerations": enumerations})}'
     else:
         definition += f'{indentation}params: None'
     return (name, definition)
 
 
-def generate_response(request: Request) -> tuple[str, str]:
+def generate_response(request: Request, enumerations: dict[str, Enumeration]) -> tuple[str, str]:
     method = request['method']
     result = request['result']
     params = request.get('params')
@@ -73,7 +74,7 @@ def generate_response(request: Request) -> tuple[str, str]:
     definition = f'class {name}(TypedDict):\n'
     definition += f"{indentation}method: Literal['{method}']\n"
     if request['messageDirection'] == 'serverToClient':
-        typ = format_type(params, {'root_symbol_name': ''}) if params else None
+        typ = format_type(params, {'enumerations': enumerations}) if params else None
         definition += f'{indentation}params: {typ}\n'
-    definition += f'{indentation}result: {format_type(result, {"root_symbol_name": ""})}'
+    definition += f'{indentation}result: {format_type(result, {"enumerations": enumerations})}'
     return (name, definition)
diff --git a/utils/generate_structures.py b/utils/generate_structures.py
index fb48c2d..c22a11a 100644
--- a/utils/generate_structures.py
+++ b/utils/generate_structures.py
@@ -11,18 +11,21 @@
 from utils.helpers import StructureKind
 
 if TYPE_CHECKING:
+    from lsp_schema import Enumeration
     from lsp_schema import Structure
 
 
-def generate_structures(structures: list[Structure]) -> list[str]:
+def generate_structures(structures: list[Structure], enumerations: dict[str, Enumeration]) -> list[str]:
     def to_string(structure: Structure) -> str:
         kind = StructureKind.Function if has_invalid_property_name(structure['properties']) else StructureKind.Class
-        return generate_structure(structure, structures, kind)
+        return generate_structure(structure, structures, kind, enumerations)
 
     return [to_string(structure) for structure in structures if not structure['name'].startswith('_')]
 
 
-def get_additional_properties(for_structure: Structure, structures: list[Structure]) -> list[FormattedProperty]:
+def get_additional_properties(
+    for_structure: Structure, structures: list[Structure], enumerations: dict[str, Enumeration]
+) -> list[FormattedProperty]:
     """Return properties from extended and mixin types."""
     result: list[FormattedProperty] = []
     additional_structures = for_structure.get('extends') or []
@@ -33,16 +36,21 @@ def get_additional_properties(for_structure: Structure, structures: list[Structu
             raise Exception(error, additional_structure['kind'])
         structure = next(structure for structure in structures if structure['name'] == additional_structure['name'])
         if structure:
-            properties = get_formatted_properties(structure['properties'], structure['name'])
+            properties = get_formatted_properties(structure['properties'], {'enumerations': enumerations})
             result.extend(properties)
     return result
 
 
-def generate_structure(structure: Structure, structures: list[Structure], structure_kind: StructureKind) -> str:
+def generate_structure(
+    structure: Structure,
+    structures: list[Structure],
+    structure_kind: StructureKind,
+    enumerations: dict[str, Enumeration],
+) -> str:
     result = ''
     symbol_name = structure['name']
-    properties = get_formatted_properties(structure['properties'], structure['name'])
-    additional_properties = get_additional_properties(structure, structures)
+    properties = get_formatted_properties(structure['properties'], {'enumerations': enumerations})
+    additional_properties = get_additional_properties(structure, structures, enumerations)
 
     # add extended properties
     taken_property_names = [p['name'] for p in properties]
diff --git a/utils/generate_type_aliases.py b/utils/generate_type_aliases.py
index d345db9..0be3cb0 100644
--- a/utils/generate_type_aliases.py
+++ b/utils/generate_type_aliases.py
@@ -5,17 +5,20 @@
 from utils.helpers import format_type
 
 if TYPE_CHECKING:
+    from lsp_schema import Enumeration
     from lsp_schema import TypeAlias
 
 
-def generate_type_aliases(type_aliases: list[TypeAlias], overrides: dict[str, str]) -> list[str]:
+def generate_type_aliases(
+    type_aliases: list[TypeAlias], overrides: dict[str, str], enumerations: dict[str, Enumeration]
+) -> list[str]:
     def to_string(type_alias: TypeAlias) -> str:
         symbol_name = type_alias['name']
         documentation = format_comment(type_alias.get('documentation'))
         if symbol_name in overrides:
             value = overrides[symbol_name]
         else:
-            value = format_type(type_alias['type'], {'root_symbol_name': symbol_name})
+            value = format_type(type_alias['type'], {'enumerations': enumerations})
         result = f"""
 {symbol_name}: TypeAlias = {value}"""
         if documentation:
diff --git a/utils/helpers.py b/utils/helpers.py
index d08699b..daf919c 100644
--- a/utils/helpers.py
+++ b/utils/helpers.py
@@ -8,6 +8,8 @@
 
 if TYPE_CHECKING:
     from lsp_schema import BaseType
+    from lsp_schema import Enumeration
+    from lsp_schema import EnumerationType
     from lsp_schema import EveryType
     from lsp_schema import MapKeyType
     from lsp_schema import Property
@@ -54,7 +56,7 @@ class StructureKind(Enum):
 
 
 class FormatTypeContext(TypedDict):
-    root_symbol_name: str
+    enumerations: dict[str, Enumeration]
 
 
 def format_type(typ: EveryType, context: FormatTypeContext) -> str:
@@ -63,13 +65,15 @@ def format_type(typ: EveryType, context: FormatTypeContext) -> str:
         return format_base_types(typ)
     if typ['kind'] == 'reference':
         literal_symbol_name = typ['name']
+        if (enum := context['enumerations'].get(literal_symbol_name)) and enum.get('supportsCustomValues'):
+            return f'Union[{format_type(enum["type"], context)}, {literal_symbol_name}]'
         return f"'{literal_symbol_name}'"
     if typ['kind'] == 'array':
         literal_symbol_name = format_type(typ['element'], context)
         return f'List[{literal_symbol_name}]'
     if typ['kind'] == 'map':
         key = format_base_types(typ['key'])
-        value = format_type(typ['value'], {'root_symbol_name': key})
+        value = format_type(typ['value'], {'enumerations': context['enumerations']})
         return f'Dict[{key}, {value}]'
     if typ['kind'] == 'and':
         pass
@@ -91,7 +95,7 @@ def format_type(typ: EveryType, context: FormatTypeContext) -> str:
     return result
 
 
-def format_base_types(base_type: BaseType | MapKeyType) -> str:
+def format_base_types(base_type: BaseType | MapKeyType | EnumerationType) -> str:
     mapping: dict[str, str] = {
         'integer': 'int',
         'uinteger': 'Uint',
@@ -111,11 +115,11 @@ class FormattedProperty(TypedDict):
     documentation: str
 
 
-def get_formatted_properties(properties: list[Property], root_symbol_name: str) -> list[FormattedProperty]:
+def get_formatted_properties(properties: list[Property], context: FormatTypeContext) -> list[FormattedProperty]:
     result: list[FormattedProperty] = []
     for p in properties:
         key = p['name']
-        value = format_type(p['type'], {'root_symbol_name': root_symbol_name + '_' + key})
+        value = format_type(p['type'], context)
         if p.get('optional'):
             value = f'NotRequired[{value}]'
         documentation = p.get('documentation') or ''