feat(fio): add accessP() operator

Author: tusharmath

src/main/FIO.ts

@@ -130,6 +130,15 @@ export class FIO<E1 = unknown, A1 = unknown, R1 = NoEnv> {
     return FIO.flatten(FIO.access(cb))
   }
 
+  /**
+   * Creates a new FIO instance with the provided environment by invoking a promise returning function.
+   */
+  public static accessP<A1, R1>(
+    cb: (R: R1) => Promise<A1>
+  ): FIO<Error, A1, R1> {
+    return FIO.env<R1>().chain(FIO.encaseP(cb))
+  }
+
   /**
    * Converts a [[FIO]] of a function into a [[FIO]] of a value.
    */