Streamlit has an error with multiple table download buttons

When testing with a file that has multiple detected tables, each download button gets the same key causing an error. The proposed change fixes that by appending the table count to the download button key

app.py

@@ -381,7 +381,7 @@ class TableExtractionPipeline():
         return df.to_csv().encode('utf-8')
 
 
-    def create_dataframe(self, c3, cells_pytess_result:list, max_cols:int, max_rows:int):
+    def create_dataframe(self, c3, cells_pytess_result:list, max_cols:int, max_rows:int, table_num: int):
         '''Create dataframe using list of cell values of the table, also checks for valid header of dataframe
         Args:
             cells_pytess_result: list of strings, each element representing a cell in a table
@@ -419,7 +419,7 @@ class TableExtractionPipeline():
         
         c3.dataframe(df)
         csv = self.convert_df(df)
-        c3.download_button("Download table", csv, "file.csv", "text/csv", key='download-csv')
+        c3.download_button("Download table", csv, "file.csv", "text/csv", key=f'download-csv-{table_num}')
         
         return df
 
@@ -447,7 +447,7 @@ class TableExtractionPipeline():
         self.plot_results_detection(c1, model, image, probas, bboxes_scaled,  delta_xmin, delta_ymin, delta_xmax, delta_ymax) 
         cropped_img_list = self.crop_tables(image, probas, bboxes_scaled, delta_xmin, delta_ymin, delta_xmax, delta_ymax)
 
-        for unpadded_table in cropped_img_list:
+        for table_num, unpadded_table in enumerate(cropped_img_list):
 
             table = self.add_padding(unpadded_table, padd_top, padd_right, padd_bottom, padd_left)
             # table = super_res(table)
@@ -477,7 +477,7 @@ class TableExtractionPipeline():
             cells_pytess_result = await asyncio.gather(*sequential_cell_img_list)
             
 
-            self.create_dataframe(c3, cells_pytess_result, max_cols, max_rows)
+            self.create_dataframe(c3, cells_pytess_result, max_cols, max_rows, table_num)
             st.write('Errors in OCR is due to either quality of the image or performance of the OCR')
         # except:
         #     st.write('Either incorrectly identified table or no table, to debug remove try/except')