Update object keys of `Metrics` to match new spec about dbt-semantic-interfaces HOT 1 CLOSED

class MetricInputMeasureProtocol(Protocol):
    name: str
    constraint: Optional[WhereClauseConstraint]
    alias: Optional[str]
    measure_reference: MeasureReference
    post_aggregation_measure_reference: MeasureReference

class MetricTimeWindowProtocol(Protocol):
    count: int
    granularity: TimeGranularity
    to_string: str

class MetricInputProtocol(Protocol):
    name: str
    constraint: Optional[WhereClauseConstraint]
    alias: Optional[str]
    offset_window: Optional[MetricTimeWindowProtocol]
    offset_to_grain: Optional[TimeGranularity]
    as_reference: MetricReference

class MetricTypeParamsProtocol(Protocol):
    measure: Optional[MetricInputMeasureProtocol]
    measures: Optional[List[MetricInputMeasureProtocol]]
    numerator: Optional[MetricInputMeasureProtocol]
    denominator: Optional[MetricInputMeasureProtocol]
    expr: Optional[str]
    window: Optional[MetricTimeWindowProtocol]
    grain_to_date: Optional[TimeGranularity]
    metrics: Optional[List[MetricInputProtocol]]
    numerator_measure_reference: Optional[MeasureReference]
    denominator_measure_reference: Optional[MeasureReference]

class MetricProtocol(Protocol):
    name: str
    description: Optional[str]
    type: MetricType
    type_params: MetricTypeParamsProtocol
    filters: Optional[WhereClauseConstraint???]
    metadata: Optional[Metadata]
    input_measures: List[MetricInputMeasureProtocol]
    measure_references: List[MeasureReference]
    input_metrics: List[MetricInputProtocol]