Can you explain the purpose of the 'git checkout' command and how it is used in Git workflows?

The git checkout command is used to switch between branches or to restore files in the working directory.

Main uses:

• Switching branches:

  git checkout branch_name
  

  Allows you to switch to another branch to work with its contents.

• Restoring files:

  git checkout -- path/to/file
  

  Reverts local changes in the specified file, returning it to the state of the last commit.

In Git workflows, git checkout helps quickly switch between tasks, development branches, and also revert changes in files if necessary.