chore(sdk): Update sdk comments

sdk/python/kfp_tekton/compiler/_tekton_handler.py

@@ -513,6 +513,24 @@ def process_inline_cr_field(field_name):
 
 
 def find_ancestors(nested_custom_tasks: list, father_ct_name, ancestors: list, root_ct):
+    """ Finds the ancestors of a nested custom task.
+
+        Parameters
+        ----------
+        nested_custom_tasks : list
+            A list of dictionaries, each dictionary containing the name of a nested custom task and the name of its father custom task.
+        father_ct_name : str
+            The name of the father custom task.
+        ancestors : list
+            A list of the ancestors of the nested custom task.
+        root_ct : str
+            The name of the root custom task.
+
+        Returns
+        -------
+        relationship : dict
+            A dictionary containing the ancestors of the nested custom task and the name of the root custom task.
+    """
     relationship = {'ancestors': ancestors, 'root_ct': root_ct}
     for custom_task in nested_custom_tasks:
         if father_ct_name == custom_task['nested_custom_task']:

sdk/python/kfp_tekton/compiler/compiler.py

@@ -383,6 +383,15 @@ def input_helper(custom_task, sub_group, param_list):
             })
 
     def process_pipelineparam(s):
+      """
+        This function takes a string and replaces all instances of {{pipelineparam:op=<op_name>;name=<param_name>}}
+        with the appropriate value.
+
+        If op_name is empty, then the value of the parameter is taken from the pipeline parameters.
+        If op_name is not empty, then the value of the parameter is taken from the results of the operation.
+
+        The parameter name is sanitized to be a valid Kubernetes name.
+      """
       if "{{pipelineparam" in s:
         pipe_params = re.findall(r"{{pipelineparam:op=([^ \t\n,]*);name=([^ \t\n,]*)}}", s)
         for pipe_param in pipe_params:
@@ -880,7 +889,15 @@ def _get_inputs_outputs_recursive_opsgroup(group):
     return inputs, outputs
 
   def _process_resourceOp(self, task_refs, pipeline):
-    """ handle resourceOp cases in pipeline """
+    """
+    This function is used to handle resourceOp cases in pipeline.
+    It will add the action, merge_strategy, success_condition, failure_condition, set_owner_reference, output to the task params.
+    Args:
+        task_refs: the task_refs in pipeline.
+        pipeline: the pipeline object
+    Returns:
+        None
+    """
     for task in task_refs:
       op = pipeline.ops.get(task['name'])
       if isinstance(op, dsl.ResourceOp):

sdk/python/kfp_tekton/k8s_client_helper.py

@@ -16,6 +16,22 @@
 
 
 def env_from_secret(env_name, secret_name, secret_key):
+    """ Creates a V1EnvVar object from a secret.
+
+        Parameters
+        ----------
+        env_name : str
+            The name of the environment variable.
+        secret_name : str
+            The name of the secret.
+        secret_key : str
+            The key of the secret.
+
+        Returns
+        -------
+        V1EnvVar
+            A V1EnvVar object.
+    """
     return k8s_client.V1EnvVar(
         name=env_name,
         value_from=k8s_client.V1EnvVarSource(