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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 get_local_gb(iLOIP, snmp_credentials):
 """Gets the maximum disk size among all disks. :param iLOIP: IP address of the server on which SNMP discovery has to be executed. :param snmp_credentials in a dictionary having following mandatory keys. auth_user: SNMP user auth_protocol: Auth Protocol auth_prot_pp: Pass phrase value for AuthProtocol. priv_protocol:Privacy Protocol. auth_priv_pp: Pass phrase value for Privacy Protocol. """

    disk_sizes = _get_disksize_MiB(iLOIP, snmp_credentials)
    max_size = 0
    for uuid in disk_sizes:
        for key in disk_sizes[uuid]:
            if int(disk_sizes[uuid][key]) > max_size:
                max_size = int(disk_sizes[uuid][key])
    max_size_gb = max_size/1024
    return max_size_gb