diff --git a/src/abstract.ts b/src/abstract.ts
index 7f76d15..699e7a0 100644
--- a/src/abstract.ts
+++ b/src/abstract.ts
@@ -16,6 +16,12 @@ interface AbstractModelOptions {
 	overrides?: OverridesSupportedOptions;
 }
 
+/**
+ * Creates an abstract model to keep data
+ * in memory for future passes creation
+ * @param options
+ */
+
 export async function createAbstractModel(options: AbstractFactoryOptions) {
 	if (!(options && Object.keys(options).length)) {
 		throw new Error(formatMessage("CP_NO_OPTS"));
diff --git a/src/factory.ts b/src/factory.ts
index 988b4e9..9c92ac2 100644
--- a/src/factory.ts
+++ b/src/factory.ts
@@ -5,6 +5,14 @@ import { getModelContents, readCertificatesFromOptions } from "./parser";
 import { splitBufferBundle } from "./utils";
 import { AbstractModel, AbstractFactoryOptions } from "./abstract";
 
+/**
+ * Creates a new Pass instance.
+ *
+ * @param options Options to be used to create the instance or an Abstract Model reference
+ * @param additionalBuffers More buffers (with file name) to be added on runtime (if you are downloading some files from the web)
+ * @param abstractMissingData Additional data for abstract models, that might vary from pass to pass.
+ */
+
 export async function createPass(
 	options: FactoryOptions | AbstractModel,
 	additionalBuffers?: BundleUnit,