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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def format_BLB():

 """Sets some formatting options in Matplotlib."""

    rc("figure", facecolor="white")
    rc('font', family = 'serif', size=10) #, serif = 'cmr10')
    rc('xtick', labelsize=10)
    rc('ytick', labelsize=10)
    rc('axes', linewidth=1)
    rc('xtick.major', size=4, width=1)
    rc('xtick.minor', size=2, width=1)
    rc('ytick.major', size=4, width=1)
    rc('ytick.minor', size=2, width=1)