fix: add new ZodType definitions for z.coerce types

The new ZodType definitions allow for `z.input` to work as expected with coerced types. I have aligned the `z.input` results to match the respective coercion expressions. For example, z.input<ZodCoercedBigInt> resolves to "string | number | bigint | boolean" because that is what the BigInt constructor accepts, according to its TypeScript definition.

src/types.ts

@@ -897,6 +897,10 @@ export class ZodString extends ZodType<string, ZodStringDef> {
   };
 }
 
+export declare class ZodCoercedString extends ZodString {
+  readonly _input: any
+}
+
 /////////////////////////////////////////
 /////////////////////////////////////////
 //////////                     //////////
@@ -1181,6 +1185,10 @@ export class ZodNumber extends ZodType<number, ZodNumberDef> {
   }
 }
 
+export declare class ZodCoercedNumber extends ZodNumber {
+  readonly _input: any
+}
+
 /////////////////////////////////////////
 /////////////////////////////////////////
 //////////                     //////////
@@ -1223,6 +1231,8 @@ export class ZodBigInt extends ZodType<bigint, ZodBigIntDef> {
   };
 }
 
+export interface ZodCoercedBigInt extends Omit<ZodBigInt, keyof ZodType>, ZodType<bigint, ZodBigIntDef, string | number | bigint | boolean> {}
+
 //////////////////////////////////////////
 //////////////////////////////////////////
 //////////                     ///////////
@@ -1265,6 +1275,10 @@ export class ZodBoolean extends ZodType<boolean, ZodBooleanDef> {
   };
 }
 
+export declare class ZodCoercedBoolean extends ZodBoolean {
+  readonly _input: any
+}
+
 ///////////////////////////////////////
 ///////////////////////////////////////
 //////////                     ////////
@@ -1404,6 +1418,8 @@ export class ZodDate extends ZodType<Date, ZodDateDef> {
   };
 }
 
+export interface ZodCoercedDate extends Omit<ZodDate, keyof ZodType>, ZodType<Date, ZodDateDef, string | number | Date> {}
+
 ////////////////////////////////////////////
 ////////////////////////////////////////////
 //////////                        //////////
@@ -4437,16 +4453,16 @@ const onumber = () => numberType().optional();
 const oboolean = () => booleanType().optional();
 
 export const coerce = {
-  string: ((arg) =>
-    ZodString.create({ ...arg, coerce: true })) as typeof ZodString["create"],
-  number: ((arg) =>
-    ZodNumber.create({ ...arg, coerce: true })) as typeof ZodNumber["create"],
-  boolean: ((arg) =>
-    ZodBoolean.create({ ...arg, coerce: true })) as typeof ZodBoolean["create"],
-  bigint: ((arg) =>
-    ZodBigInt.create({ ...arg, coerce: true })) as typeof ZodBigInt["create"],
-  date: ((arg) =>
-    ZodDate.create({ ...arg, coerce: true })) as typeof ZodDate["create"],
+  string: ((params?: RawCreateParams)  =>
+    ZodString.create({ ...params, coerce: true }) as ZodCoercedString),
+  number: ((params?: RawCreateParams)  =>
+    ZodNumber.create({ ...params, coerce: true }) as ZodCoercedNumber),
+  boolean: ((params?: RawCreateParams)  =>
+    ZodBoolean.create({ ...params, coerce: true }) as ZodCoercedBoolean),
+  bigint: ((params?: RawCreateParams)  =>
+    ZodBigInt.create({ ...params, coerce: true }) as ZodCoercedBigInt),
+  date: ((params?: RawCreateParams)  =>
+    ZodDate.create({ ...params, coerce: true }) as ZodCoercedDate),
 };
 
 export {