class Github::Users::Followers

def follow(user_name, params={})
  _validate_presence_of user_name
  normalize! params
  put_request("/user/following/#{user_name}", params)
end

def following(user_name=nil, params={})
  normalize! params
  response = if user_name
    get_request("/users/#{user_name}/following", params)
  else
    get_request("/user/following", params)
  end
  return response unless block_given?
  response.each { |el| yield el }
end

def following?(user_name, params={})
  _validate_presence_of user_name
  normalize! params
  get_request("/user/following/#{user_name}", params)
  true
rescue Github::Error::NotFound
  false
end

def list(user_name=nil, params={})
  normalize! params
  response = if user_name
    get_request("/users/#{user_name}/followers", params)
  else
    get_request("/user/followers", params)
  end
  return response unless block_given?
  response.each { |el| yield el }
end

def unfollow(user_name, params={})
  _validate_presence_of user_name
  normalize! params
  delete_request("/user/following/#{user_name}", params)
end