Fixing more type hints

Author: dpanta94

src/Contracts/Relationships/RelationshipCRUD.php

@@ -19,7 +19,7 @@ interface RelationshipCRUD {
 	 *
 	 * @since 0.1.0
 	 *
-	 * @param mixed $id The ID of the relationship.
+	 * @param string|int $id The ID of the relationship.
 	 */
 	public function deleteAllRelationshipData( $id ): void;
 
@@ -28,7 +28,7 @@ public function deleteAllRelationshipData( $id ): void;
 	 *
 	 * @since 0.1.0
 	 *
-	 * @param mixed $id The ID of the relationship.
+	 * @param string|int $id The ID of the relationship.
 	 *
 	 * @return ModelContract|ModelContract[]|null
 	 */

src/Relationships/ManyToManyWithPosts.php

@@ -151,7 +151,7 @@ public function getTableInterface(): string {
 	 *
 	 * @since 0.1.0
 	 *
-	 * @param mixed $id The ID of the relationship.
+	 * @param string|int $id The ID of the relationship.
 	 */
 	public function deleteAllRelationshipData( $id ): void {
 		$this->getTableInterface()::delete( $id, $this->getThisEntityColumn() );
@@ -162,7 +162,9 @@ public function deleteAllRelationshipData( $id ): void {
 	 *
 	 * @since 0.1.0
 	 *
-	 * @param mixed $id The ID of the relationship.
+	 * @param string|int $id The ID of the relationship.
+	 *
+	 * @return array
 	 */
 	public function fetchRelationshipData( $id ) {
 		$table = $this->getTableInterface();