Fix this Python code to function correctly: def getBMData$($filename$)$:

$"""$Assumes filename is a fully qualified filename for a CSV containing

CH$,$ MaxStaffed, WSL $($int$),$ CO $($int$),$ row$\_$date $($float$)$

Returns a dictioary with a list for each variable"""

data $=\{\}$

data$[\text{'}$CH$\text{'}]=[]$

data$[\text{'}$CO$\text{'}]=[]$

data$[\text{'}$MaxStaffed$\text{'}]=[]$

data$[\text{'}$WSL$\text{'}]=[]$

data$[\text{'}$row$\_$date'$]=[]$

f $=$ open$($filename$)$

line $=$ f$.$readline$()$

while line $!=\text{'}\text{'}$:

split $=$ line.split$(\text{'},\text{'})$

data$[\text{'}$MaxStaffed$\text{'}].$append$($split$[0])$

data$[\text{'}$CH$\text{'}].$append$($split$[1])$

data$[\text{'}$WSL$\text{'}].$append$($split$[2])$

data$[\text{'}$CO$\text{'}].$append$($split$[3])$

data$[\text{'}$row$\_$date'$].$append$($split$[4])$

line $=$ f$.$readline$()$

f$.$close$()$

return data

import matplotlib.pyplot as plt

import numpy as np

def makeHist$($data$,$ numBins, title, xlabel, ylabel$)$:

plt$.$close$()$

plt$.$hist$($data$,$ numBins$)$

plt$.$title$($title$)$

plt$.$xlabel$($xlabel$)$

plt$.$ylabel$($ylabel$)$

mean $=$ np$.$mean$($data$)$

std $=$ np$.$std$($data$)$

plt$.$annotate$(\text{'}$Mean: $\text{'}+$ str$($round$($mean$,2))+\text{'}$

$\text{'}+$

$\text{'}$SD: $\text{'}+$ str$($round$($std$,2)),$

fontsize $=15,$

xy $=(0\mathrm{.}65,0\mathrm{.}75),$

xycoords $=$ 'axes fraction'$)$

plt$.$show$()$

bm$\_$dict $=$ getBMData$(\text{'}$FP$\_$Paygov$\_$CO$\_$CH$.$csv$\text{'})$

makeHist$($bm$\_$dict$[\text{'}$row$\_$date'$],100,$ 'Calls Handled for the past $24$ months',

$\text{'}$CH$\text{'},$

$\text{'}$CO$\text{'})$