diff --git a/rendercv/cli.py b/rendercv/cli.py
index 1992aa2..3ad0ec5 100644
--- a/rendercv/cli.py
+++ b/rendercv/cli.py
@@ -403,7 +403,7 @@ class LiveProgressReporter(rich.live.Live):
 def cli_command_render(
     input_file_path: Annotated[
         str,
-        typer.Argument(help="Name of the YAML input file"),
+        typer.Argument(help="Path to the YAML input file as a string"),
     ],
     use_local_latex: bool = typer.Option(
         False,
@@ -414,7 +414,7 @@ def cli_command_render(
     """Generate a LaTeX CV from a YAML input file.
 
     Args:
-        input_file (str): Name of the YAML input file
+        input_file_path (str): Path to the YAML input file as a string.
     """
     welcome()
 
@@ -467,8 +467,8 @@ def cli_command_new(full_name: Annotated[str, typer.Argument(help="Your full nam
     )
     data_model_as_dictionary = json.loads(data_model_as_json)
 
-    yaml = ruamel.yaml.YAML()
-    yaml.indent(mapping=2, sequence=4, offset=2)
-    yaml.dump(data_model_as_dictionary, file_path)
+    yaml_object = ruamel.yaml.YAML()
+    yaml_object.indent(mapping=2, sequence=4, offset=2)
+    yaml_object.dump(data_model_as_dictionary, file_path)
 
     information(f"Your RenderCV input file has been created: {file_path}!")
diff --git a/rendercv/renderer.py b/rendercv/renderer.py
index 3600110..b675d5f 100644
--- a/rendercv/renderer.py
+++ b/rendercv/renderer.py
@@ -225,12 +225,13 @@ class LaTeXFile(TemplatedFile):
             str: The $\\LaTeX$ code.
         """
         preamble, header, sections = self.render_templates()
-        return self.get_full_code(
+        latex_code: str = self.get_full_code(
             "main.j2.tex",
             preamble=preamble,
             header=header,
             sections=sections,
         )
+        return latex_code
 
     def generate_latex_file(self, file_path: pathlib.Path):
         """Write the $\\LaTeX$ code to a file."""
@@ -248,16 +249,16 @@ class MarkdownFile(TemplatedFile):
         """Render and return all the templates for the Markdown file.
 
         Returns:
-            Tuple[str, List[Tuple[str, List[str]]]]: The header and sections of the Markdown file.
+            tuple[str, List[Tuple[str, List[str]]]]: The header and sections of the Markdown file.
         """
         # Template the header and sections:
         header = self.template("Header")
-        sections = []
+        sections: list[tuple[str, list[str]]] = []
         for section in self.cv.sections:
             section_beginning = self.template(
                 "SectionBeginning", section_title=section.title
             )
-            entries = []
+            entries: list[str] = []
             for i, entry in enumerate(section.entries):
                 if i == 0:
                     is_first_entry = True
@@ -273,7 +274,8 @@ class MarkdownFile(TemplatedFile):
                 )
             sections.append((section_beginning, entries))
 
-        return header, sections
+        result: tuple[str, list[tuple[str, list[str]]]] = (header, sections)
+        return result
 
     def template(
         self,
@@ -322,13 +324,18 @@ class MarkdownFile(TemplatedFile):
         return result
 
     def get_markdown_code(self):
-        """Get the Markdown code of the file."""
+        """Get the Markdown code of the file.
+
+        Returns:
+            str: The Markdown code.
+        """
         header, sections = self.render_templates()
-        return self.get_full_code(
+        markdown_code: str = self.get_full_code(
             "main.j2.md",
             header=header,
             sections=sections,
         )
+        return markdown_code
 
     def generate_markdown_file(self, file_path: pathlib.Path):
         """Write the Markdown code to a file."""