Type Alias Metadata

Metadata:
    | { type: "SingleLineTextField"; value: string }
    | { type: "MultiLineTextField"; value: string }
    | { type: "DecimalField"; value: number }
    | { type: "IntegerField"; value: number }
    | { type: "Dimension"; value: PhysicalQuantity }
    | { type: "Date"; value: string }
    | { type: "DateTime"; value: string }
    | { type: "Color"; value: string }
    | { type: "Boolean"; value: boolean }
    | { type: "Json"; value: unknown }
    | { type: "Money"; value: Money }
    | { type: "Volume"; value: PhysicalQuantity }
    | { type: "Weight"; value: PhysicalQuantity }
    | { type: "Url"; value: string }
    | { type: "Rating"; value: Rating }
    | { type: "ListColor"; value: string[] }
    | { type: "ListDimension"; value: PhysicalQuantity[] }
    | { type: "ListSingleLineTextField"; value: string[] }
    | { type: "ListUrl"; value: string[] }
    | { type: "ListVolume"; value: PhysicalQuantity[] }
    | { type: "ListWeight"; value: PhysicalQuantity[] }
    | { type: "ListNumberDecimal"; value: number[] }
    | { type: "ListNumberInteger"; value: number[] }
    | { type: "Unsupported"; value: null }

const field = variant.metadata["gfeed::color"];
if (field && field.type === "SingleLineTextField") {
  const color: string = field.value; // Properly typed as string
}
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