
{% if filter_by == '' %}
@Key(['{{fields[0].name}}'])
def {{method_name}}_by_{{fields[0].name}}(self, domain):
{%- elif ',' not in filter_by %}
@Key(['{{filter_by}}'])
def {{method_name}}_by_{{filter_by}}(self, domain):
{%- else %}
@Key([{% for field in filter_by_list %}'{{field}}'{% if not loop.last %}, {% endif %}{% endfor %}])
def {{method_name}}_by_{{filter_by_list|join('_and_')}}(self, domain):
{%- endif %}
    {%- if filter_by == '' %}
    {{class_name_snake}} = {{class_name}}.query.get(domain[{{fields[0].name}}])
    {%- elif ',' not in filter_by %}
    {{class_name_snake}} = {{class_name}}.query.filter_by({{filter_by}}=domain['{{filter_by}}']).first()
    {%- else %}
    {{class_name_snake}} = {{class_name}}.query{% for field in filter_by_list %}.filter_by({{field}}=domain['{{field}}']){% endfor %}.first()
    {%- endif %}
    {{class_name_snake}}.update(domain)
    return {'payload': {{class_name_snake}}.to_dict()}
