Comments

Switch off the middle line with a comment so only the first and third print.

print("first")
print("second")
print("third")

A # at the start of a line makes Python skip it.

print("first")
# print("second")
print("third")

Give the function a docstring saying what it returns, then print that docstring.

def area(width, height):
    return width * height

print(area.__doc__)

A string on the first line of the function body becomes its docstring.

def area(width, height):
    """Return the area of a rectangle."""
    return width * height

print(area.__doc__)

Replace the useless comment with one that explains why the limit is 50.

# set batch size to 50
batch_size = 50
print(batch_size)

The code already says what. Say why: the API rejects more than 50 per call.

# The API rejects more than 50 ids per call, so send them in batches
batch_size = 50
print(batch_size)