# BehavesLike

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Turns a module's specs into callbacks.

Lets you state that a module behaves like another, without writing behaviour callbacks.

For example:
```elixir
defmodule API do
  use BehavesLike

  @spec get(binary()) :: {:ok, any()} | {:error, any()}
  def get(id) do
    Backend.get(id)
  end
end

defmodule Backend do
  @behaviour API

  @impl true
  def get(id) do
    database().get(id)
  end
end
```

Please note, this library uses undocumented private calls to manipulate the elixir compiler's ets tables. Use at your own risk.

## Installation

From Hex:

```elixir
def deps do
  [
    {:behaves_like, "~> 0.3.0"}
  ]
end
```

## Usage

Just add `use BehavesLike` to your module, then you can use the standard `@behaviour` attribute in other modules to refer to it.