Add ContractTypesMap to artifacts.d.ts

Add `ContractTypesMap` that returns `GetContractReturnType<${ctd.typeName}["abi"]>` to the `generateArtifactsDefinition()` and `generateDuplicateArtifactsDefinition()`.

Author: beepidibop

packages/hardhat-viem/src/internal/tasks.ts

@@ -164,6 +164,12 @@ declare module "hardhat/types/artifacts" {
       .map((name) => `${name}: never;`)
       .join("\n    ")}
   }
+
+  interface ContractTypesMap {
+    ${Array.from(duplicateContractNames)
+        .map((name) => `${name}: never;`)
+        .join("\n    ")}
+  }
 }
 `;
 }
@@ -260,6 +266,7 @@ function generateArtifactsDefinition(
   return `${AUTOGENERATED_FILE_PREFACE}
 
 import "hardhat/types/artifacts";
+import type { GetContractReturnType } from "@nomicfoundation/hardhat-viem/types";
 
 ${contractTypeData
   .map((ctd) => `import { ${ctd.typeName} } from "./${ctd.contractName}";`)
@@ -274,6 +281,15 @@ declare module "hardhat/types/artifacts" {
       .map((ctd) => `["${ctd.fqn}"]: ${ctd.typeName};`)
       .join("\n    ")}
   }
+
+  interface ContractTypesMap {
+    ${contractTypeData
+        .map((ctd) => `["${ctd.contractName}"]: GetContractReturnType<${ctd.typeName}["abi"]>;`)
+        .join("\n    ")}
+    ${contractTypeData
+        .map((ctd) => `["${ctd.fqn}"]: GetContractReturnType<${ctd.typeName}["abi"]>;`)
+        .join("\n    ")}
+  }
 }
 `;
 }