================================================================================
Declare a shape inside a container
================================================================================
foo.baz

--------------------------------------------------------------------------------

(source_file
  (container_key) (dot) (shape_key)
)

================================================================================
Use quoted string as a shape key
================================================================================
'foo'.'baz'

--------------------------------------------------------------------------------

(source_file
  (container_key (string)) (dot) (shape_key (string))
)

================================================================================
Declare container inside a container using block
================================================================================

foo: {
  bar: {
    baz: {
      biz
    }
  }
}

--------------------------------------------------------------------------------

(source_file
  (shape_key)
  (block
    (shape_key)
    (block
      (shape_key)
      (block
        (shape_key)
      )
    )
  )
)

================================================================================
Declare labaled container inside a labeled container using block
================================================================================

foo: Foo {
  bar: Bar {
    baz: Baz {
      biz: Biz
    }
  }
}

--------------------------------------------------------------------------------

(source_file
  (shape_key) (label)
  (block
    (shape_key) (label)
    (block
      (shape_key) (label)
      (block
        (shape_key) (label)
      )
    )
  )
)

================================================================================
Declare many shapes inside a container
================================================================================

foo: {
  bar
  biz
  baz
}

--------------------------------------------------------------------------------

(source_file
  (shape_key)
  (block
    (shape_key)
    (shape_key)
    (shape_key)
  )
)