v3.7.0

What's Changed

• feat: Added o1-preview/o1-mini metadata.
• feat: Added SambaNova custom provider.
• feat: Added Perplexity custom provider.
• test: Added StructuredOutputs example like official.
• fix: Fixed RunStepObject deserialization issue.
• feat:Update XML documentation comments in OpenAI.Models namespace by @HavenDV in #76
• feat:Update documentation, parameters, and properties in OpenAI library by @HavenDV in #79

Full Changelog: v3.6.3...v3.7.0