diff --git a/ts/interfaces/csvparser.ts b/ts/interfaces/csvparser.ts
index fd905f7..f8fef87 100644
--- a/ts/interfaces/csvparser.ts
+++ b/ts/interfaces/csvparser.ts
@@ -1,4 +1,4 @@
-export interface ICsvParser {
-  parse: () => Promise<any>;
-
+export abstract class AcCsvParser<T> {
+  public abstract transactionArray: T[];
+  public abstract async getTransactions (): Promise<T>;
 }
\ No newline at end of file
diff --git a/ts/interfaces/index.ts b/ts/interfaces/index.ts
new file mode 100644
index 0000000..a28b249
--- /dev/null
+++ b/ts/interfaces/index.ts
@@ -0,0 +1 @@
+export * from './csvparser';
\ No newline at end of file