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from marshmallow import Schema, fields


class BaseInfoSchema(Schema):
    """Base status field for metadatabase and scheduler"""

    status = fields.String(dump_only=True)


class MetaDatabaseInfoSchema(BaseInfoSchema):
    """Schema for Metadatabase info"""


class SchedulerInfoSchema(BaseInfoSchema):
    """Schema for Metadatabase info"""

    latest_scheduler_heartbeat = fields.String(dump_only=True)


class HealthInfoSchema(Schema):
    """Schema for the Health endpoint"""

    metadatabase = fields.Nested(MetaDatabaseInfoSchema)
    scheduler = fields.Nested(SchedulerInfoSchema)


health_schema = HealthInfoSchema()