Automatically handles tool execution loop changedcli-sdks-libraries/sdks/ruby
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301301Enum parameters have a "relaxed" type, so you can either pass in enum constants or their literal value:
302302
303303```ruby
304anthropic = Anthropic::Client.new
304305# Using the enum constants preserves the tagged type information:
305306anthropic.messages.create(
306 service_tier: Anthropic::MessageCreateParams::ServiceTier::AUTO,
307 # ...
307 max_tokens: 1024,
308 messages: [{role: "user", content: "Hello, Claude"}],
309 model: Anthropic::Model::CLAUDE_OPUS_5_5,
310 service_tier: Anthropic::MessageCreateParams::ServiceTier::AUTO
308311)
309312
310313# Literal values are also permissible:
311314anthropic.messages.create(
312 service_tier: :auto,
313 # ...
315 max_tokens: 1024,
316 messages: [{role: "user", content: "Hello, Claude"}],
317 model: :"claude-opus-5-5",
318 service_tier: :auto
314319)
315320```
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