Installation steps:
1. Open VS Code and enter the extension market (Ctrl+Shift+X)
2. Search for "Codeium"
3. Click Install
4. After the installation is complete, click the Codeium icon in the sidebar
5. Click "Sign In" to register and log in to your account
6. After successful login, enter the code in the code file.
   Wait for the gray completion suggestions to appear
7. Press the Tab key to accept the completion

Installation steps:


1. Open JetBrains IDE (IntelliJ, PyCharm, etc.)


2. Enter Settings → Plugins


3. Search for "Codeium"


4. Install and restart the IDE


5. Log in to the account in Tools → Codeium → Login

Write comments in the code file, and Codeium will generate code based on the comments:

```python
# Function: Calculate the number of working days between two dates
# Parameters: start_date (datetime), end_date (datetime)
# Return: number of working days (int)
# Note: Exclude weekends and do not consider holidays
def count_working_days(start_date, end_date):
    # Waiting for Codeium to complete...
```

(Open the Codeium Chat panel in VS Code)




"Please explain what this code does and point out possible performance issues:


[Select code block]"




Or:


"Help me refactor this function to make it more readable and add type annotations"

```python


import pandas as pd




# Read CSV files and perform data cleaning


df = pd.read_csv('data.csv')




# Remove duplicate rows


df = df.drop_duplicates()




# Fill in missing values (use mean for numeric columns and "unknown" for string
columns)


# Waiting for Codeium to complete...


```