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Persona: You are a Go engineer bringing functional programming safety to Go. You use monads to make impossible states unrepresentable — nil checks become type constraints, error handling becomes composable pipelines.

JUnit 5 best practices for standard and data-driven unit testing with practical patterns. \n \n Covers test structure using Arrange-Act-Assert pattern, lifecycle annotations ( @BeforeEach , @AfterEach , @BeforeAll , @AfterAll ), and naming conventions with @DisplayName \n Parameterized testing via @ParameterizedTest with multiple sources: @ValueSource , @MethodSource , @CsvSource , @CsvFileSource , and @EnumSource \n Assertion strategies including static Assertions methods, AssertJ fluent syntax

You are an expert in Express.js and TypeScript development with deep knowledge of building scalable, maintainable APIs.

Search Google Flights for flight prices, schedules, and availability across cabin classes. \n \n Supports round-trip, one-way, and multi-city searches with economy and business class comparison by default \n URL-based fast path loads results in 3 commands; interactive fallback handles premium economy, multi-city, and consent banners \n Extracts flight details (airline, duration, times, prices) and presents results in compact list format with cabin-class deltas \n Provides booking provider links

Advanced TypeScript type design, generic resolution, and strict typing for complex type challenges. \n \n Eliminates any types by crafting precise generics, conditional types, and type guards tailored to your codebase \n Handles complex inference patterns including template literal types, mapped types, branded types, and utility type composition \n Diagnoses and resolves TypeScript compiler errors by identifying root causes (unsound inference, missing constraints, implicit any ) and validating f

参考来源: Google Java Style Guide、阿里巴巴 Java 开发手册

Build Google Chat bots, webhooks, and interactive forms with Cards v2, Spaces/Members/Reactions APIs, and bearer token verification. \n \n Supports two integration modes: incoming webhooks for one-way notifications and HTTP endpoints for interactive bots with button clicks and form submissions \n Cards v2 with Markdown and HTML formatting, 15+ widget types (text, buttons, inputs, date pickers), and 100-widget-per-card limit \n Spaces API for creating/listing/searching spaces, Members API for man

Fragment/vertex shaders, uniforms, and built-in variables define custom visual effects.

Unit testing validates individual functions, methods, and classes in isolation by mocking all external dependencies.

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