Bump ameba and apply suggestions. Fixing up some code (#32)

shard.yml

@@ -11,4 +11,4 @@ license: MIT
 development_dependencies:
   ameba:
     github: crystal-ameba/ameba
-    version: ~> 1.0.0
+    version: ~> 1.5.0

spec/lucky_env_spec.cr

@@ -36,7 +36,7 @@ describe LuckyEnv do
     it "loads the ENV if the file exists" do
       results = LuckyEnv.load?("./spec/support/.env.test")
       results.should_not eq(nil)
-      data = results.not_nil!
+      data = results.as(Hash(String, String))
       data["LUCKY_ENV"].should eq "test"
       ENV["LUCKY_ENV"].should eq "test"
     end
@@ -141,7 +141,7 @@ describe LuckyEnv do
   end
 end
 
-private def restore_env(env)
+private def restore_env(env, &)
   yield
 ensure
   ENV.clear

src/lucky_env.cr

@@ -6,7 +6,7 @@ module LuckyEnv
   VERSION = {{ `shards version "#{__DIR__}"`.chomp.stringify }}
 
   macro add_env(name)
-    def LuckyEnv.{{ name.id }}?
+    def LuckyEnv.{{ name.id }}? : Bool
       environment == {{ name.id.stringify }}
     end
   end
@@ -30,11 +30,11 @@ module LuckyEnv
     end
   end
 
-  def self.task?
+  def self.task? : Bool
     ENV["LUCKY_TASK"]? == "true" || ENV["LUCKY_TASK"]? == "1"
   end
 
-  def self.environment
+  def self.environment : String
     ENV.fetch("LUCKY_ENV", "development")
   end