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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 getmeths(method_type):
 """ returns MagIC method codes available for a given type """

    meths = []
    if method_type == 'GM':
        meths.append('GM-PMAG-APWP')
        meths.append('GM-ARAR')
        meths.append('GM-ARAR-AP')
        meths.append('GM-ARAR-II')
        meths.append('GM-ARAR-NI')
        meths.append('GM-ARAR-TF')
        meths.append('GM-CC-ARCH')
        meths.append('GM-CC-ARCHMAG')
        meths.append('GM-C14')
        meths.append('GM-FOSSIL')
        meths.append('GM-FT')
        meths.append('GM-INT-L')
        meths.append('GM-INT-S')
        meths.append('GM-ISO')
        meths.append('GM-KAR')
        meths.append('GM-PMAG-ANOM')
        meths.append('GM-PMAG-POL')
        meths.append('GM-PBPB')
        meths.append('GM-RATH')
        meths.append('GM-RBSR')
        meths.append('GM-RBSR-I')
        meths.append('GM-RBSR-MA')
        meths.append('GM-SMND')
        meths.append('GM-SMND-I')
        meths.append('GM-SMND-MA')
        meths.append('GM-CC-STRAT')
        meths.append('GM-LUM-TH')
        meths.append('GM-UPA')
        meths.append('GM-UPB')
        meths.append('GM-UTH')
        meths.append('GM-UTHHE')
    else:
        pass
    return meths