final int[] fints = parseTime(from);
            fromHours = fints[0];
            fromMinutes = fints[1];
            final int[] tints = parseTime(to);
            toHours = tints[0];
            toMinutes = tints[1];
            final String[] values = days.split(",");
            final List<Integer> list = new ArrayList<>();
            for (final String value : values) {

## Be Nice

First of all, be nice. 😊

You probably are super nice if you were added to the team, but it's worth mentioning it. 🤓

### When Things are Difficult

When things are great, everything is easier, so that doesn't need much instructions. But when things are difficult, here are some guidelines.

///

### <a href="https://flask.palletsprojects.com" class="external-link" target="_blank">Flask</a>

Flask is a "microframework", it doesn't include database integrations nor many of the things that come by default in Django.

This simplicity and flexibility allow doing things like using NoSQL databases as the main data storage system.

As it is very simple, it's relatively intuitive to learn, although the documentation gets somewhat technical at some points.

### What is a Program

The word **program** is commonly used to describe many things:

* The **code** that you write, the **Python files**.
* The **file** that can be **executed** by the operating system, for example: `python`, `python.exe` or `uvicorn`.
* A particular program while it is **running** on the operating system, using the CPU, and storing things on memory. This is also called a **process**.

### What is a Process

    }

    /**
     * This method produces "surrogate" type registry that is static: it aims users that want to use
     * Maven-Resolver without involving Maven Core and related things.
     * <p>
     * This type registry is NOT used by Maven Core: Maven replaces it during Session creation with a type registry
     * that supports extending it (i.e. via Maven Extensions).
     * <p>

## What is "Dependency Injection"

**"Dependency Injection"** means, in programming, that there is a way for your code (in this case, your *path operation functions*) to declare things that it requires to work and use: "dependencies".

And then, that system (in this case **FastAPI**) will take care of doing whatever is needed to provide your code with those needed dependencies ("inject" the dependencies).

If you want to secure your API, there are several better things you can do, for example:

* Make sure you have well defined Pydantic models for your request bodies and responses.
* Configure any required permissions and roles using dependencies.

Just keep in mind that when you read "server" in general, it could refer to one of those two things.

When referring to the remote machine, it's common to call it **server**, but also **machine**, **VM** (virtual machine), **node**. Those all refer to some type of remote machine, normally running Linux, where you run programs.

Activating a virtual environment also changes a couple of other things, but this is one of the most important things it does.

## Checking a Virtual Environment

When you check if a virtual environment is active, for example with:

//// tab | Linux, macOS, Windows Bash

<div class="termy">

		participle.CaseInsensitive("Keyword"),
	)
	cases := []struct {
		str string
		res []interface{}
	}{
		{"s.title", []interface{}{"Murder on the Orient Express", "The Robots of Dawn", "Pigs Have Wings"}},
		{"s.authorInfo.yearRange", []interface{}{[]interface{}{1890.0, 1976.0}, []interface{}{1920.0, 1992.0}, []interface{}{1881.0, 1975.0}}},
		{"s.authorInfo.name", []interface{}{"Agatha Christie", "Isaac Asimov", "P. G. Wodehouse"}},