add custom provider cerebras

[danijerez]

Summary by CodeRabbit

• New Features

  • Added support for the Cerebras custom provider, allowing users to initialize an API instance using CustomProviders.Cerebras("API_KEY").

• Documentation

  • Updated the README.md to include the new Cerebras provider and clarified error handling for tryGetXXX methods.

• Bug Fixes

  • Enhanced the GetAuthorizedChatApi method to support the Cerebras provider while maintaining existing functionality.

[coderabbitai]

Walkthrough

The changes in this pull request include updates to the README.md file, the addition of a new provider in the CustomProviders class, and modifications to the integration tests. The README.md now includes the Cerebras provider in its documentation, while the CustomProviders class has a new constant and method for initializing an API instance with Cerebras. Additionally, the integration tests have been updated to accommodate the new provider, enhancing the overall functionality and clarity of the SDK.

Changes

File	Change Summary
README.md	Added Cerebras provider to "Custom providers" section and clarified behavior of tryGetXXX methods in "Constants" section.
src/libs/OpenAI/CustomProviders.cs	Added constant CerebrasBaseUrl and method Cerebras(string apiKey) for initializing API instance.
src/tests/OpenAI.IntegrationTests/CustomProvider.cs	Added new enum member Cerebras to CustomProvider enumeration.
src/tests/OpenAI.IntegrationTests/Tests.Helpers.cs	Updated GetAuthorizedChatApi method to handle CustomProvider.Cerebras, returning an API instance.

Sequence Diagram(s)

sequenceDiagram
    participant User
    participant API
    participant CustomProviders

    User->>CustomProviders: Initialize with API_KEY
    CustomProviders->>API: Create instance with CerebrasBaseUrl
    API-->>CustomProviders: Return OpenAiApi instance
    CustomProviders-->>User: Return API instance

Loading

🐰 In the garden of code, we hop with glee,
New providers sprout, as bright as can be!
With Cerebras in tow, our toolkit expands,
Documentation blooms, as clarity stands.
So let’s code and create, with joy in our hearts,
For every new feature, a fresh work of art! 🌼

---

📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Files that changed from the base of the PR and between 5b767cd and 75c9a65.

📒 Files selected for processing (4)

• README.md (1 hunks)
• src/libs/OpenAI/CustomProviders.cs (2 hunks)
• src/tests/OpenAI.IntegrationTests/CustomProvider.cs (1 hunks)
• src/tests/OpenAI.IntegrationTests/Tests.Helpers.cs (1 hunks)

🔇 Additional comments (7)

src/tests/OpenAI.IntegrationTests/CustomProvider.cs (1)

21-21: LGTM! Verify complete integration.

The addition of Cerebras to the enum follows the correct naming convention and placement.

Let's verify the complete integration across related files:

✅ Verification successful

Integration verified and properly implemented

The Cerebras provider is fully integrated across the codebase with all necessary components in place:

• Base URL configuration in CustomProviders.cs: CerebrasBaseUrl = "https://api.cerebras.ai/v1"
• Provider implementation with proper API key handling
• Test helpers with environment variable support (CEREBRAS_API_KEY)
• Documentation in README.md with usage example

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the complete integration of the Cerebras provider

# Test 1: Verify CustomProviders.cs implementation
echo "Checking for Cerebras implementation in CustomProviders class..."
ast-grep --pattern 'class CustomProviders {
  $$$
  public static OpenAiApi Cerebras(string $_) {
    $$$
  }
  $$$
}'

# Test 2: Verify README.md documentation
echo "Checking for Cerebras documentation in README..."
rg -i "cerebras" "README.md"

# Test 3: Verify test helper integration
echo "Checking for Cerebras handling in test helpers..."
rg -A 5 "case CustomProvider.Cerebras:" "src/tests"

Length of output: 607

---

Script:

#!/bin/bash
# Let's try a different approach to verify the integration

# Check for Cerebras-related implementations across the codebase
echo "Checking for Cerebras-related code..."
rg -l "Cerebras" src/

# Check for any URL or endpoint configurations
echo "Checking for API endpoint configurations..."
rg -i "cerebras.*api|cerebras.*url|cerebras.*endpoint" src/

# Look for test cases involving Cerebras
echo "Looking for test implementations..."
rg -A 5 "Cerebras" src/tests/

Length of output: 2093

src/libs/OpenAI/CustomProviders.cs (3)

79-82: LGTM! The constant follows the established patterns.

The constant declaration and documentation are well-structured and consistent with other providers in the class.

---

219-226: LGTM! The method implementation is consistent with other providers.

The method follows the same pattern as other provider methods in the class, maintaining consistency in the API design.

---

Line range hint 79-226: Verify integration consistency across the codebase.

The implementation looks good. Let's verify the consistency of the integration:

✅ Verification successful

Integration is properly implemented and consistent across the codebase

The verification shows:

• Consistent naming of "Cerebras" across all relevant files
• Proper error handling in tests with CEREBRAS_API_KEY environment variable check
• Documentation includes the API endpoint reference
• Integration test enum and helper methods are correctly implemented

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify consistent naming and integration across files

# Test 1: Check consistent naming of Cerebras across files
echo "Checking consistent naming..."
rg -i "cerebras" --type cs --type md

# Test 2: Verify error handling pattern in tests
echo "Checking error handling in tests..."
rg "CEREBRAS_API_KEY" --type cs

# Test 3: Verify documentation completeness
echo "Checking documentation..."
rg "https://api\.cerebras\.ai" --type cs --type md

Length of output: 1816

src/tests/OpenAI.IntegrationTests/Tests.Helpers.cs (2)

138-144: LGTM! Please verify the default model identifier.

The implementation follows the established pattern consistently with other providers and includes proper error handling. However, please verify that "llama3.1-70b" is the correct model identifier for Cerebras's API.

Let's verify the model name in the documentation:

#!/bin/bash
# Search for Cerebras model references in documentation
rg -i "cerebras.*model|llama.*70b" README.md docs/

---

138-144: Ensure CI/CD and documentation are updated.

To complete this integration:

1. Update CI/CD configuration to include CEREBRAS_API_KEY for integration tests
2. Document the environment variable requirement in the testing setup guide

Let's check if documentation exists:

README.md (1)

190-190: LGTM! Verify the CustomProviders implementation.

The documentation addition follows the established pattern and is placed appropriately in the custom providers section.

Let's verify that the corresponding implementation exists:

✅ Verification successful

✓ Documentation matches the implementation

The Cerebras provider is properly implemented in CustomProviders.cs with:

• Correct base URL constant: https://api.cerebras.ai/v1
• Public static method Cerebras(string apiKey) that returns an OpenAiApi instance
• Integration test coverage in place

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the Cerebras provider implementation exists in CustomProviders.cs

# Test: Search for Cerebras-related code. Expect: CustomProviders class with Cerebras method
ast-grep --pattern 'class CustomProviders {
  $$$
  Cerebras($_) {
    $$$
  }
  $$$
}'

Length of output: 89

---

Script:

#!/bin/bash
# Let's try a broader search approach to find any mentions of Cerebras or CustomProviders

# Search for any file containing "Cerebras"
echo "=== Files containing 'Cerebras' ==="
rg -l "Cerebras"

# Search for any file containing "CustomProviders"
echo -e "\n=== Files containing 'CustomProviders' ==="
rg -l "CustomProviders"

# If we find relevant files, we can then look for specific implementations

Length of output: 492

---

Script:

#!/bin/bash
# Let's examine the actual implementation in CustomProviders.cs
echo "=== CustomProviders.cs implementation ==="
rg "Cerebras" src/libs/OpenAI/CustomProviders.cs -B 2 -A 5

# Also check the test implementation
echo -e "\n=== Integration test implementation ==="
rg "Cerebras" src/tests/OpenAI.IntegrationTests/CustomProvider.cs -B 2 -A 5

Length of output: 913

---

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