add type hints

Author: arw2019

pandas/core/frame.py

@@ -51,9 +51,12 @@
     ArrayLike,
     Axes,
     Axis,
+    ColspaceArgType,
     CompressionOptions,
     Dtype,
     FilePathOrBuffer,
+    FloatFormatType,
+    FormattersType,
     FrameOrSeriesUnion,
     IndexKeyFunc,
     Label,
@@ -1612,11 +1615,11 @@ def to_gbq(
         self,
         destination_table: str,
         project_id: Optional[str] = None,
-        chunksize=None,
+        chunksize: Optional[int] = None,
         reauth: bool = False,
         if_exists: str = "fail",
         auth_local_webserver: bool = False,
-        table_schema=None,
+        table_schema: Optional[List[Dict[str, str]]] = None,
         location: Optional[str] = None,
         progress_bar: bool = True,
         credentials=None,
@@ -2474,29 +2477,29 @@ def to_parquet(
     @Substitution(shared_params=fmt.common_docstring, returns=fmt.return_docstring)
     def to_html(
         self,
-        buf=None,
-        columns=None,
-        col_space=None,
-        header=True,
-        index=True,
-        na_rep="NaN",
-        formatters=None,
-        float_format=None,
-        sparsify=None,
-        index_names=True,
-        justify=None,
-        max_rows=None,
-        max_cols=None,
-        show_dimensions=False,
+        buf: Optional[FilePathOrBuffer[str]] = None,
+        columns: Optional[Sequence[str]] = None,
+        col_space: Optional[ColspaceArgType] = None,
+        header: Union[bool, Sequence[str]] = True,
+        index: bool = True,
+        na_rep: str = "NaN",
+        formatters: Optional[FormattersType] = None,
+        float_format: Optional[FloatFormatType] = None,
+        index_names: bool = True,
+        sparsify: Optional[bool] = None,
+        justify: Optional[str] = None,
+        max_rows: Optional[int] = None,
+        max_cols: Optional[int] = None,
+        show_dimensions: Union[bool, str] = False,
         decimal: str = ".",
-        bold_rows=True,
-        classes=None,
-        escape=True,
-        notebook=False,
-        border=None,
-        table_id=None,
-        render_links=False,
-        encoding=None,
+        bold_rows: bool = True,
+        classes: Optional[Union[str, List, Tuple]] = None,
+        escape: bool = True,
+        notebook: bool = False,
+        border: Optional[int] = None,
+        table_id: Optional[str] = None,
+        render_links: bool = False,
+        encoding: Optional[str] = None,
     ):
         """
         Render a DataFrame as an HTML table.