human
I wrote the below code

    T = current.T
    settings.base.system_name = T('Sahana    Ebola    Response')
    settings.base.system_name_short = T('Sahana')
    settings.base.prepopulate += ('Disease', 'default/users')
    settings.base.theme = 'Disease'
    settings.ui.default_cancel_button = True
    settings.auth.registration_requires_verification = True
    settings.mail.approver = 'ADMIN'
    settings.gis.countries = ('GN', 'LR', 'ML', 'NG', 'SL', 'SN')
    settings.gis.legend = 'float'
    settings.gis.popup_location_link = True
    settings.L10n.languages = OrderedDict([('en', 'English'), ('fr', 'Fran\xc3\xa7ais')])
    settings.L10n.decimal_separator = '.'
    settings.L10n.thousands_separator = ','
    def customise_hms_hospital_resource(r, tablename):
        if (r.representation == 'geojson'):
            current.s3db.hms_status.facility_status.represent = None
            return
        hms_facility_type_opts = {1: T('Hospital'), 41: T('ETC'), 42: T('Triage'), 43: T('Holding    Center'), 44: T('Transit    Center')}
        hms_facility_status_opts = {1: T('Functioning'), 4: T('Closed'), 5: T('Pending')}
        from gluon import IS_EMPTY_OR, IS_IN_SET
        s3db = current.s3db
        NONE = current.messages['NONE']
        field = s3db.hms_hospital.facility_type
        field.represent = (lambda opt: hms_facility_type_opts.get(opt, NONE))
        field.requires = IS_EMPTY_OR(IS_IN_SET(hms_facility_type_opts))
        field = s3db.hms_status.facility_status
        field.represent = (lambda opt: hms_facility_status_opts.get(opt, NONE))
        field.requires = IS_EMPTY_OR(IS_IN_SET(hms_facility_status_opts))
    settings.customise_hms_hospital_resource = customise_hms_hospital_resource
    def customise_disease_stats_data_resource(r, tablename):
        s3db = current.s3db
        table = s3db.disease_stats_data
        summary = settings.get_ui_summary()
        settings.ui.summary = (list(summary) + [{'name': 'timeplot', 'label': 'Progression', 'widgets': [{'method': 'timeplot', 'ajax_init': True}]}])
        def...

What's a good function header?

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Here's a good function header?
assistant
#Here's a good function header.

def config(settings):