zBlockParam

const zBlockParam: ZodUnion<[ZodLiteral<"latest">, ZodLiteral<"earliest">, ZodLiteral<"pending">, ZodLiteral<"safe">, ZodLiteral<"finalized">, ZodBigInt, ZodEffects<ZodString, `0x${string}`, string>]>

Source

packages/zod/src/params/zBlockParam.js:4