Modify columns

# DataFrame employees
# +-------------+--------+
# | Column Name | Type   |
# +-------------+--------+
# | name        | object |
# | salary      | int    |
# +-------------+--------+
# A company intends to give its employees a pay rise.

# Write a solution to modify the salary column by multiplying each salary by 2.

# The result format is in the following example.


# Example 1:

# Input:
# DataFrame employees
# +---------+--------+
# | name    | salary |
# +---------+--------+
# | Jack    | 19666  |
# | Piper   | 74754  |
# | Mia     | 62509  |
# | Ulysses | 54866  |
# +---------+--------+
# Output:
# +---------+--------+
# | name    | salary |
# +---------+--------+
# | Jack    | 39332  |
# | Piper   | 149508 |
# | Mia     | 125018 |
# | Ulysses | 109732 |
# +---------+--------+
# Explanation:
# Every salary has been doubled.

import pandas as pd


def modifySalaryColumn(employees: pd.DataFrame) -> pd.DataFrame:
  employees["salary"] = employees["salary"] * 2
  return employees