human
Complete this python program:
def dc_rheader(r, tabs=None):
assistant
#Here is the Python program you requested.

    """Resource Headers for Data Collection Tool
    """
    if (r.representation != 'html'):
        return None
    s3db = current.s3db
    (tablename, record) = s3_rheader_resource(r)
    if (tablename != r.tablename):
        resource = s3db.resource(tablename, id=record.id)
    else:
        resource = r.resource
    rheader = None
    rheader_fields = []
    if record:
        T = current.T
        if (tablename == 'dc_template'):
            tabs = ((T('Basic    Details'), None), (T('Sections'), 'section'), (T('Questions'), 'question'))
            rheader_fields = (['name'],)
        elif (tablename == 'dc_response'):
            tabs = ((T('Basic    Details'), None, {'native': 1}), (T('Answers'), 'answer'), (T('Attachments'), 'document'))
            rheader_fields = [['template_id'], ['location_id'], ['date'], ['person_id']]
            db = current.db
            def contacts(record):
                ptable = s3db.pr_person
                ctable = s3db.pr_contact
                query = (((ptable.id == record.person_id) & (ptable.pe_id == ctable.pe_id)) & (ctable.deleted == False))
                data = db(query).select(ctable.value, ctable.contact_method, ctable.priority, orderby=(~ ctable.priority))
                if data:
                    email = None
                    other = None
                    for contact in data:
                        if (contact.contact_method == 'SMS'):
                            return contact.value
                        elif (contact.contact_method == 'Email'):
                            if (not email):
                                email = contact.value
                        elif (not other):
                            other = contact.value
                    return (email or other)
                else:
                    return A(T('Add'))
            rheader_fields.append([(T('Contact    Details'), contacts)])
            has_module = current.deployment_settings.has_module
            if has_module('stats'):
                def population(record):
                    ptable =...