How can I update the 'gender' column values from 'M' to 'Male' and 'F' to 'Female' in the 'people_10m' table using PySpark?
To update the 'gender' column values from 'M' to 'Male' and 'F' to 'Female' in the 'people_10m' table using PySpark, you can use the following code:

```python
from delta.tables import *
from pyspark.sql.functions import *

deltaTable = DeltaTable.forName(spark, "main.default.people_10m")

deltaTable.update(
    condition = "gender = 'M'",
    set = { "gender": "'Male'" }
)

deltaTable.update(
    condition = "gender = 'F'",
    set = { "gender": "'Female'" }
)
```

This code uses the `DeltaTable` class from the `delta.tables` module to create a reference to the 'people_10m' table. It then uses the `update` method to update the 'gender' column values based on the specified conditions.