diff --git a/src/llm.jl b/src/llm.jl
index 1fe86f7..3c00475 100644
--- a/src/llm.jl
+++ b/src/llm.jl
@@ -6,7 +6,9 @@ abstract type OpenAILLM <: AbstractLLM end
 
 """
     GroqLLM
+
 Structure encapsulating the parameters for accessing the Groq LLM API.
+
 - `api_key`: an API key for accessing the Groq API (https://groq.com), read from the environmental variable GROQ_API_KEY.
 - `model_id`: a string identifier for the model to query. See https://console.groq.com/docs/models for the list of available models.
 - `url`: URL for chat completions. Defaults to "https://api.groq.com/openai/v1/chat/completions".
@@ -27,10 +29,12 @@ end
 
 """
     Google LLM
+
 Structure encapsulating the parameters for accessing the Google LLM API.
-- `api_key`: an API key for accessing the Google Gemini API (https://ai.google.dev/gemini-api/docs/), read from the environmental variable GOOGLE_API_KEY.
-- `model_id`: a string identifier for the model to query. See https://ai.google.dev/gemini-api/docs/models/gemini for the list of available models.
-- `url`: URL for chat completions. Defaults to ""https://generativelanguage.googleapis.com/v1beta/models/{{model_id}}".
+
+- `api_key`: an API key for accessing the Google Gemini API (`https://ai.google.dev/gemini-api/docs/`), read from the environmental variable `GOOGLE_API_KEY`.
+- `model_id`: a string identifier for the model to query. See `https://ai.google.dev/gemini-api/docs/models/gemini` for the list of available models.
+- `url`: URL for chat completions. Defaults to `https://generativelanguage.googleapis.com/v1beta/models/{{model_id}}`.
 """
 struct GoogleLLM <: AbstractLLM
     api_key::String
@@ -48,12 +52,14 @@ end
 
 """
     LlamaCppLLM
+
 Structure encapsulating the parameters for accessing the llama.cpp server API.
+
 - `api_key`: an optional API key for accessing the server
 - `model_id`: a string identifier for the model to query. Unused, kept for API compatibility.
 - `url`: the URL of the llama.cpp server OpenAI API endpoint (e.g., http://localhost:8080)
-NOTE: we do not apply the appropriate chat templates to the prompt.
-This must be handled either in an external code path or by the server.
+
+NOTE: we do not apply the appropriate chat templates to the prompt. This must be handled either in an external code path or by the server.
 """
 struct LlamaCppLLM <: OpenAILLM
     api_key::String
@@ -68,6 +74,7 @@ end
 
 """
     get_completion(llm::OpenAILLM, prompt::Prompt)
+
 Returns a completion for the given prompt using an OpenAI API compatible LLM
 """
 function get_completion(llm::OpenAILLM, prompt::Prompt)
@@ -89,6 +96,7 @@ end
 
 """
     get_completion(llm::GoogleLLM, prompt::Prompt)
+
 Returns a completion for the given prompt using the Google Gemini LLM API.
 """
 function get_completion(llm::GoogleLLM, prompt::Prompt)
@@ -110,6 +118,7 @@ end
 
 """
     stream_completion(llm::OpenAILLM, prompt::Prompt)
+
 Returns a completion for the given prompt using an OpenAI API compatible model.
 The completion is streamed to the terminal as it is generated.
 """
@@ -166,6 +175,7 @@ end
 
 """
     stream_completion(llm::GoogleLLM, prompt::Prompt)
+
 Returns a completion for the given prompt using the Google Gemini LLM API.
 The completion is streamed to the terminal as it is generated.
 """
@@ -206,6 +216,7 @@ end
 
 """
     stream_completion(llm::AbstractLLM, prompt::AbstractPrompt)
+
 Returns a completion for a `prompt` using the `llm` model API.
 The completion is streamed to the terminal as it is generated.
 """
@@ -216,8 +227,9 @@ end
 
 """
     get_completion(llm::AbstractLLM, prompt::AbstractPrompt)
+
 Returns a completion for a `prompt` using the `llm` model API.
 """
-function get_completion(llm::AbstractLLM, prompt::AbstractPrompt)
-    error("Not implemented for this LLM and/or prompt type.")
+function get_completion(::AbstractLLM, ::AbstractPrompt)
+    return error("Not implemented for this LLM and/or prompt type.")
 end
diff --git a/src/parsing.jl b/src/parsing.jl
index 24ddd68..dd998fe 100644
--- a/src/parsing.jl
+++ b/src/parsing.jl
@@ -1,5 +1,6 @@
 """
     parse_code(s::String)
+
 Parse the code blocks in the input string `s` delimited by triple backticks and an optional language annotation.
 Returns a dictionary keyed by language. Code blocks from the same language are concatenated.
 """
@@ -32,7 +33,8 @@ end
 
 """
     check_syntax_errors(s::String)
-Parses the string `s` as Julia code. In the case of syntax errors, it returns the error 
+
+Parses the string `s` as Julia code. In the case of syntax errors, it returns the error
 message of the parser as a string. Otherwise, it returns an empty string.
 """
 function check_syntax_errors(s::String)
@@ -47,6 +49,7 @@ end
 
 """
     edit_in_vim(s::String)
+
 Edits the input string `s` in a temporary file using the Vim editor.
 Returns the modified string after the editor is closed.
 """
diff --git a/src/prompt.jl b/src/prompt.jl
index 1357381..7feabc3 100644
--- a/src/prompt.jl
+++ b/src/prompt.jl
@@ -2,6 +2,7 @@ abstract type AbstractPrompt end
 
 """
     Prompt
+
 Simple data structure encapsulating a system prompt and a user prompt for LLM generation.
 
 ## Fields
diff --git a/src/template.jl b/src/template.jl
index 595f9c6..c7531e6 100644
--- a/src/template.jl
+++ b/src/template.jl
@@ -19,6 +19,8 @@ struct MetadataMessage <: AbstractMessage
 end
 
 """
+    SystemMessage
+
 Represents the prompt template of a system message.
 The template can optionally contain string placeholders enclosed in double curly braces, e.g., `{{variable}}`.
 Placeholders must be replaced with actual values when generating prompts.
@@ -33,6 +35,8 @@ struct SystemMessage <: AbstractMessage
 end
 
 """
+    UserMessage
+
 Represents the prompt template of a user message.
 The template can optionally contain string placeholders enclosed in double curly braces, e.g., `{{variable}}`.
 Placeholders must be replaced with actual values when generating prompts.
@@ -47,6 +51,8 @@ struct UserMessage <: AbstractMessage
 end
 
 """
+    PromptTemplate
+
 Represents a complete prompt template, comprising metadata, system, and user messages.
 
 # Fields
@@ -63,7 +69,7 @@ end
 """
     read_template(data_path::String)
 
-Reads a prompt template from a JSON file specified by `data_path`. 
+Reads a prompt template from a JSON file specified by `data_path`.
 The function parses the JSON data and constructs a `PromptTemplate` object containing metadata, system, and user messages.
 TODO: validate the JSON data against a schema to ensure it is valid before parsing.
 
@@ -165,4 +171,4 @@ function format_template(template::PromptTemplate; kwargs...)
     end
 
     return Prompt(system, user)
-end
\ No newline at end of file
+end
diff --git a/src/translate.jl b/src/translate.jl
index b7feaef..12d7df9 100644
--- a/src/translate.jl
+++ b/src/translate.jl
@@ -2,7 +2,8 @@ const MAX_RETRIES::Int = 3
 
 """
     extract_structure(model <: AbstractLLM, description <: AbstractString)
-Extracts the parameters, decision variables and constraints of an optimization problem 
+
+Extracts the parameters, decision variables and constraints of an optimization problem
 given a natural-language `description`.
 Returns a Markdown-formatted text containing the above information.
 """
@@ -51,8 +52,9 @@ end
 
 """
     jumpify_model(model::AbstractLLM, description::AbstractString, examples::AbstractString)
+
 Translates the natural language `description` of an optimization problem into a JuMP constraints
-programming model to be solved with CBL by querying the Large Language Model `model`. 
+programming model to be solved with CBL by querying the Large Language Model `model`.
 The `examples` are snippets from `ConstraintModels.jl` used as in-context examples to the LLM.
 To work optimally, the model expects the `description` to be a structured Markdown-formatted
 description as the ones generated by `extract_structure`.
@@ -126,6 +128,7 @@ end
 
 """
     fix_syntax_errors(model::AbstractLLM, code::AbstractString, error::AbstractString)
+
 Fixes syntax errors in the `code` by querying the Large Language Model `model`, based on
 an `error` produced by the Julia parser.
 Returns Markdown-formatted text containing the corrected code in a Julia code block.
@@ -141,9 +144,10 @@ end
 
 """
     translate(model::AbstractLLM, description::AbstractString; interactive::Bool = false)
-Translate the natural-language `description` of an optimization problem into 
+
+Translate the natural-language `description` of an optimization problem into
 a Constraint Programming model by querying the Large Language Model `model`.
-If `interactive`, the user will be prompted via the command line to inspect the 
+If `interactive`, the user will be prompted via the command line to inspect the
 intermediate outputs of the LLM, and possibly modify them.
 """
 function translate(
diff --git a/src/utils.jl b/src/utils.jl
index bc9a4e2..f60e3df 100644
--- a/src/utils.jl
+++ b/src/utils.jl
@@ -1,5 +1,6 @@
 """
     get_package_path()
+
 Returns the absolute path of the root directory of `ConstraintsTranslator.jl`.
 """
 function get_package_path()
@@ -8,4 +9,4 @@ function get_package_path()
         error("The path of the package could not be found. This should never happen!")
     end
     return package_path
-end
\ No newline at end of file
+end