comet-ml/opik
Oct 2024 – Oct 2025
13 Months active
Languages Used
DockerfileCSSJavaScriptSCSSTypeScriptHTMLtsxPython
Technical Skills
DevOpsDockerAPI IntegrationBug FixingCSSCode Refactoring
andrii.dudar
PROFILE
Andrii.dudar
Andrii Didenko engineered a broad suite of data exploration, annotation, and automation features for the comet-ml/opik repository, focusing on scalable frontend and backend integration. He developed advanced table components, dynamic filtering, and robust data export flows using React, TypeScript, and Python, enabling users to analyze experiments, traces, and metrics with greater flexibility and reliability. His work included building annotation queue management, alerting integrations, and AI-powered trace inspection, all while refining UI/UX for accessibility and performance. By implementing feature toggles, state management, and API-driven workflows, Andrii delivered maintainable solutions that improved data quality, observability, and user productivity across the platform.
Overall Statistics
Feature vs Bugs
83%Features
Repository Contributions
220Total
Bugs
23
Commits
220
Features
115
Lines of code
85,347
Activity Months13
Your Network
86 people
Work History
October 2025
27 Commits • 15 Features
Oct 1, 2025October 2025 monthly summary for comet-ml/opik focusing on business value and technical achievements. The month featured a major frontend overhaul of the annotation queue UX, significant backend/FE improvements for metric accuracy, stability fixes for data export, and expanded alerting/incident response capabilities. Work spanned BE/FE collaboration, UI/UX refinements, and reliability improvements across deployments.
27 Commits • 15 Features
Oct 1, 2025October 2025 monthly summary for comet-ml/opik focusing on business value and technical achievements. The month featured a major frontend overhaul of the annotation queue UX, significant backend/FE improvements for metric accuracy, stability fixes for data export, and expanded alerting/incident response capabilities. Work spanned BE/FE collaboration, UI/UX refinements, and reliability improvements across deployments.
October 2025
September 2025
14 Commits • 8 Features
Sep 1, 2025September 2025 (2025-09) performance summary for comet-ml/opik focusing on reliability, UX improvements, and data workflows. Key features delivered include UI/theme enhancements with improved dark mode and standardized JSON view theming; description fields across feedback and detail pages to provide richer data context; Alerts tab with API endpoints and UI for managing alerts integrated into the feature toggle system; Annotation Queues UI/API with accompanying documentation for end-to-end queue management; frontend rule enforcement across guideline sets to improve accessibility, data fetching, QA, form handling, and performance; no-data screen asset optimization to reduce load times and preserve layout; and cleanup of the Human Annotation feature toggle with related default context handling to simplify maintenance and reduce surface area.
September 2025
14 Commits • 8 Features
Sep 1, 2025September 2025 (2025-09) performance summary for comet-ml/opik focusing on reliability, UX improvements, and data workflows. Key features delivered include UI/theme enhancements with improved dark mode and standardized JSON view theming; description fields across feedback and detail pages to provide richer data context; Alerts tab with API endpoints and UI for managing alerts integrated into the feature toggle system; Annotation Queues UI/API with accompanying documentation for end-to-end queue management; frontend rule enforcement across guideline sets to improve accessibility, data fetching, QA, form handling, and performance; no-data screen asset optimization to reduce load times and preserve layout; and cleanup of the Human Annotation feature toggle with related default context handling to simplify maintenance and reduce surface area.
August 2025
13 Commits • 7 Features
Aug 1, 2025August 2025 (2025-08) performance summary for comet-ml/opik. Delivered core data exploration capabilities, improved data ingestion flexibility, enhanced experiment analytics, AI-assisted trace inspection, and strengthened monitoring UX, while enabling admins to self-serve upgrades. These changes reduce time-to-insight, improve data quality and governance, and support growth in usage and monetization across the platform.
13 Commits • 7 Features
Aug 1, 2025August 2025 (2025-08) performance summary for comet-ml/opik. Delivered core data exploration capabilities, improved data ingestion flexibility, enhanced experiment analytics, AI-assisted trace inspection, and strengthened monitoring UX, while enabling admins to self-serve upgrades. These changes reduce time-to-insight, improve data quality and governance, and support growth in usage and monetization across the platform.
August 2025
July 2025
18 Commits • 7 Features
Jul 1, 2025July 2025 was focused on delivering high-value frontend features, strengthening observability, and improving data quality to drive faster decision-making and superior user experience. The release emphasized flexibility in scoring and improved visibility into system performance, while reintroducing intuitive onboarding and robust data handling.
July 2025
18 Commits • 7 Features
Jul 1, 2025July 2025 was focused on delivering high-value frontend features, strengthening observability, and improving data quality to drive faster decision-making and superior user experience. The release emphasized flexibility in scoring and improved visibility into system performance, while reintroducing intuitive onboarding and robust data handling.
June 2025
12 Commits • 5 Features
Jun 1, 2025June 2025 monthly summary for comet-ml/opik (Frontend/UX and data integrity): Delivered several user-facing enhancements that improve usability, observability, and data reliability, while strengthening data filtering and navigation flows to accelerate workflows and reduce noise in analyses. Key outcomes include personnel-facing UX improvements, enhanced tracing/experiment visibility, and cost metrics visualization that support faster decision making.
12 Commits • 5 Features
Jun 1, 2025June 2025 monthly summary for comet-ml/opik (Frontend/UX and data integrity): Delivered several user-facing enhancements that improve usability, observability, and data reliability, while strengthening data filtering and navigation flows to accelerate workflows and reduce noise in analyses. Key outcomes include personnel-facing UX improvements, enhanced tracing/experiment visibility, and cost metrics visualization that support faster decision making.
June 2025
May 2025
18 Commits • 4 Features
May 1, 2025May 2025 achievements focused on delivering visible business value through enhanced optimization analytics, AI workflow UX, and robust UI/UX improvements, complemented by reliability fixes. Key outcomes include a new Optimization Runs page with API integration, a refreshed AI Provider and Prompt Management experience, improved message formatting, and broad UI/UX polish, resulting in faster experimentation, clearer data visibility, and improved trace reliability.
May 2025
18 Commits • 4 Features
May 1, 2025May 2025 achievements focused on delivering visible business value through enhanced optimization analytics, AI workflow UX, and robust UI/UX improvements, complemented by reliability fixes. Key outcomes include a new Optimization Runs page with API integration, a refreshed AI Provider and Prompt Management experience, improved message formatting, and broad UI/UX polish, resulting in faster experimentation, clearer data visibility, and improved trace reliability.
April 2025
10 Commits • 3 Features
Apr 1, 2025April 2025 (2025-04) monthly summary for comet-ml/opik: Delivered major frontend and backend enhancements that improve data exploration, reliability, and customization, with strong emphasis on business value and user experience. Key work includes attachments and image handling across traces and experiments, dynamic sorting for traces/spans/experiments, and Python-based custom metrics in automation rules. Fixed critical navigation and input reliability issues to improve stability under real-world usage. Demonstrated end-to-end integration across frontend, backend, and SDK, with performance-focused improvements in image processing and rendering. Impact: faster, more reliable data analysis, richer experiment/mapping previews, and flexible automation scoring that enables teams to tailor metric evaluations to their pipelines. Technologies/skills: frontend-backend/API integration, React UI for previews, performance optimizations, Python-based rule evaluations, feature flags, and robust bug-fix discipline.
10 Commits • 3 Features
Apr 1, 2025April 2025 (2025-04) monthly summary for comet-ml/opik: Delivered major frontend and backend enhancements that improve data exploration, reliability, and customization, with strong emphasis on business value and user experience. Key work includes attachments and image handling across traces and experiments, dynamic sorting for traces/spans/experiments, and Python-based custom metrics in automation rules. Fixed critical navigation and input reliability issues to improve stability under real-world usage. Demonstrated end-to-end integration across frontend, backend, and SDK, with performance-focused improvements in image processing and rendering. Impact: faster, more reliable data analysis, richer experiment/mapping previews, and flexible automation scoring that enables teams to tailor metric evaluations to their pipelines. Technologies/skills: frontend-backend/API integration, React UI for previews, performance optimizations, Python-based rule evaluations, feature flags, and robust bug-fix discipline.
April 2025
March 2025
24 Commits • 20 Features
Mar 1, 2025Monthly summary for 2025-03 focusing on business value and technical achievements. Key features delivered, major fixes, and overall impact are highlighted below with concrete commits to illustrate delivery scope and code changes: Key features delivered - Chat: Implement thread sidebar and Threads tab enabling multi-thread conversations (OPIK-1112: d066b1fce51ee4822e6c189c62a7a56fca4cc127; 832c7e1c5206a28511082c9989c41e6ddf35bdd6; OPIK-1113: a8b9cb111361ef2de484faec2788e263e6aa3aca). PR references: #1450, #1460, #1462. - Front-end UX: Added animations to sidebars and fixed readability with a frozen table header during scroll (1d5542e11deaad9db80af224d57888e32505b7b0; b49ef67f9130b5e282167534607be3a35439bc73). - Data presentation/exports: Enhanced metrics export (reason field in JSON), UI CSV exports for Experiment Comparison, Markdown rendering in experiment output, and remembering user formatting preferences (66575e5d7f17faaee4f5609298fc83fccd5a9b5a; ebedc8eab29b26dc3c4d76cde328948513132bfa; 7b9075f0880bc981c5137621543627df9d467448; e665f041c03320ef71270d1c68873ff08f268f8f). - Filtering/search: Added a frontend datetime filter and search for span tree to improve navigation (920e306edee6435bd5e6ccd0ab9908826115d11d; 2f719253245e8c2f38fe8380c4ac4ba125633b35). - Configuration/maintenance: Gemini provider config updates and version bump to 1.6.8 (ac8151e72f8e4c7052d9162c9a386676cfa5f566; fabf62c9a77e1b34627401e5692ba9ca4beb5609). Major bugs fixed - UI: Sidebar erroneously opens after deletion of a dataset item (d3080072bd061e53c8918582dec9043126a6b394). - Performance/Investigations: Placeholder investigation addressing table performance degradation to surface potential issues (#1623) (e1c84609e95d01e6c7cfd53f66c5a3ce2003dc50). Overall impact and accomplishments - Elevates collaboration and data exploration through richer Chat interactions, faster multi-criteria filtering, and more polished data exports; strengthens release readiness with config and version updates; and demonstrates a broad set of frontend UX and data-handling capabilities that support decision-making and operational efficiency. Technologies/skills demonstrated - Front-end/UX design and implementation (Chat UI, thread wiring, sidebar animations, sticky headers) - Data presentation and export (JSON, CSV, Markdown rendering, user formatting preferences) - Filtering and navigation (datetime filter, span-tree search) - Performance awareness and debugging (investigations) and provider/configuration management - Release engineering (version bump) and GitHub integration.
March 2025
24 Commits • 20 Features
Mar 1, 2025Monthly summary for 2025-03 focusing on business value and technical achievements. Key features delivered, major fixes, and overall impact are highlighted below with concrete commits to illustrate delivery scope and code changes: Key features delivered - Chat: Implement thread sidebar and Threads tab enabling multi-thread conversations (OPIK-1112: d066b1fce51ee4822e6c189c62a7a56fca4cc127; 832c7e1c5206a28511082c9989c41e6ddf35bdd6; OPIK-1113: a8b9cb111361ef2de484faec2788e263e6aa3aca). PR references: #1450, #1460, #1462. - Front-end UX: Added animations to sidebars and fixed readability with a frozen table header during scroll (1d5542e11deaad9db80af224d57888e32505b7b0; b49ef67f9130b5e282167534607be3a35439bc73). - Data presentation/exports: Enhanced metrics export (reason field in JSON), UI CSV exports for Experiment Comparison, Markdown rendering in experiment output, and remembering user formatting preferences (66575e5d7f17faaee4f5609298fc83fccd5a9b5a; ebedc8eab29b26dc3c4d76cde328948513132bfa; 7b9075f0880bc981c5137621543627df9d467448; e665f041c03320ef71270d1c68873ff08f268f8f). - Filtering/search: Added a frontend datetime filter and search for span tree to improve navigation (920e306edee6435bd5e6ccd0ab9908826115d11d; 2f719253245e8c2f38fe8380c4ac4ba125633b35). - Configuration/maintenance: Gemini provider config updates and version bump to 1.6.8 (ac8151e72f8e4c7052d9162c9a386676cfa5f566; fabf62c9a77e1b34627401e5692ba9ca4beb5609). Major bugs fixed - UI: Sidebar erroneously opens after deletion of a dataset item (d3080072bd061e53c8918582dec9043126a6b394). - Performance/Investigations: Placeholder investigation addressing table performance degradation to surface potential issues (#1623) (e1c84609e95d01e6c7cfd53f66c5a3ce2003dc50). Overall impact and accomplishments - Elevates collaboration and data exploration through richer Chat interactions, faster multi-criteria filtering, and more polished data exports; strengthens release readiness with config and version updates; and demonstrates a broad set of frontend UX and data-handling capabilities that support decision-making and operational efficiency. Technologies/skills demonstrated - Front-end/UX design and implementation (Chat UI, thread wiring, sidebar animations, sticky headers) - Data presentation and export (JSON, CSV, Markdown rendering, user formatting preferences) - Filtering and navigation (datetime filter, span-tree search) - Performance awareness and debugging (investigations) and provider/configuration management - Release engineering (version bump) and GitHub integration.
February 2025
9 Commits • 8 Features
Feb 1, 2025February 2025 (OPIK) — Delivered impactful UX and data-ability improvements, extended AI capabilities, and experimental features. Key work spans enhanced table interactions, code readability improvements, data export, advanced filtering, local AI provider integration, an experimental chat playground, URL-based navigation/state, and UI consistency upgrades. These changes reduce manual effort, improve data accessibility, enable offline AI workflows, and provide a foundation for scalable, user-centric features.
9 Commits • 8 Features
Feb 1, 2025February 2025 (OPIK) — Delivered impactful UX and data-ability improvements, extended AI capabilities, and experimental features. Key work spans enhanced table interactions, code readability improvements, data export, advanced filtering, local AI provider integration, an experimental chat playground, URL-based navigation/state, and UI consistency upgrades. These changes reduce manual effort, improve data accessibility, enable offline AI workflows, and provide a foundation for scalable, user-centric features.
February 2025
January 2025
19 Commits • 6 Features
Jan 1, 2025January 2025: Focused on strengthening scoring governance for LLM outputs, enriching dataset management UX, and improving project analytics and prompt versioning. Delivered a consolidated Rules and automation scoring system for LLM outputs, enhanced dataset management and tracing UX, and improved prompt versioning UX, analytics, and API reliability across comet-ml/opik. Key outcomes include rule-based scoring with a new Rules tab and API endpoints, UI components for managing rules with support for LLM-as-judge or Python-based rules and improved logging; dataset editing and update flows with redirects to datasets and prompt items, plus richer trace UI; descriptive prompt versioning with unified edit UI and side-by-side diffs; project analytics with average duration, total cost, and token usage; experiment configuration UI refinements; and a project API refactor to separate find and stats endpoints. Also fixed validation in AddToDatasetDialog to ensure only defined-input rows are added, improving data integrity and user experience.
January 2025
19 Commits • 6 Features
Jan 1, 2025January 2025: Focused on strengthening scoring governance for LLM outputs, enriching dataset management UX, and improving project analytics and prompt versioning. Delivered a consolidated Rules and automation scoring system for LLM outputs, enhanced dataset management and tracing UX, and improved prompt versioning UX, analytics, and API reliability across comet-ml/opik. Key outcomes include rule-based scoring with a new Rules tab and API endpoints, UI components for managing rules with support for LLM-as-judge or Python-based rules and improved logging; dataset editing and update flows with redirects to datasets and prompt items, plus richer trace UI; descriptive prompt versioning with unified edit UI and side-by-side diffs; project analytics with average duration, total cost, and token usage; experiment configuration UI refinements; and a project API refactor to separate find and stats endpoints. Also fixed validation in AddToDatasetDialog to ensure only defined-input rows are added, improving data integrity and user experience.
December 2024
29 Commits • 17 Features
Dec 1, 2024December 2024 (comet-ml/opik) delivered substantial UX polish, governance improvements, and observability enhancements that drive faster data validation, safer access, and better decision-making. The work focused on data accuracy, scalable UI actions, and FR-driven metadata enhancements, aligning front-end UX with robust back-end data modeling. Key outcomes include fixes to critical data displays, dynamic UI tables, security hardening, and richer metrics/trace observability.
29 Commits • 17 Features
Dec 1, 2024December 2024 (comet-ml/opik) delivered substantial UX polish, governance improvements, and observability enhancements that drive faster data validation, safer access, and better decision-making. The work focused on data accuracy, scalable UI actions, and FR-driven metadata enhancements, aligning front-end UX with robust back-end data modeling. Key outcomes include fixes to critical data displays, dynamic UI tables, security hardening, and richer metrics/trace observability.
December 2024
November 2024
26 Commits • 14 Features
Nov 1, 2024Monthly summary for 2024-11 (comet-ml/opik). Focused on delivering frontend UX improvements, data presentation enhancements, and robust fixes that improve end-user productivity and data reliability. Key features delivered: - OPIK-377 Remove line highlighting in code blocks: Simplified code presentation; reduced visual noise for developers reviewing code blocks. (Commit 854ea085b9eaacc6a2561863d6cd2d2a8701d882) - OPIK-273 UX improvements: Remove Actions top-level button: Streamlined actions surface to reduce clutter and improve workflow efficiency. (Commit a4037dbf37a8eb5c8f6e8e49ca3228b91967dd42) - OPIK-379 Introduce separator in table header: Clearer column separation improves readability in dense tables. (Commit 1624bfd356c47067002a252706e70e4795df7e26) - OPIK-375 Traces UI: Add traces and LLM calls tabs in traces table: Enhanced trace visibility and context for experiments. (Commit a8f7b24b6ee5787e0c1978547514e846d665493a) - OPIK-239 UX improvements: Add charts of experiment table: Quick insights from experiments with visual charts. (Commits 66e3271bd0a541a11e681fbd91ced755e28551de; fb9cccf569e7ac07b65f7c530ddb2e08c9f30038) - OPIK-372 FE: Add sorting for projects table: Improved data discovery and usability through frontend sorting. (Commits 8af5d3e3b4de2049998cb5ab1151b52bd768d3d5; 1f29cc3cc3b99c6870a9ac09b9f269a7e84f5a17) - OPIK-492 Data Export: Export traces as JSON instead of CSV: Aligns with downstream processing and reduces parsing complexity. (Commit ee3cb508d831b62b87e8a1a11771ba36b6f78fe0) - OPIK-350 Prompts Library FE: Prompts details – Experiments tab: Enriched Prompts details with Experiments context for faster discovery. (Commits f53a671aeb03b15db09003fc2d4ef5fee1ac022f; 31a71f007b59505c684d88d000ce12ec18a608db) Major bugs fixed: - ISSUE-522 YAML formatting bug: Corrected YAML formatting for edge-case strings to ensure reliable config loading. (Commit 26b7d56c20e778acb11518932594926bd40750f1) - ISSUE-612 Broken design in new Experiments page: Resolved layout inconsistencies for stable user experience. (Commit f539fc0db14f9b275044e473064cbdca4906e8a7) - OPIK-448 FE: UI on editing feedback score was slow: Optimized rendering and interaction path for faster feedback score edits. (Commit c020c089f24a33fbb76e95e5701b4356328248e7) - OPIK-729 Optimistic Update Robustness: Added request cancellation before making an optimistic update to improve reliability. (Commit 67d2f5767528c58baa5bc3de01136a3d10bb4e4f) Overall impact and accomplishments: - Substantial UX and performance improvements across the FE: faster navigation, clearer data presentation, and more reliable interactions. - Enhanced data visibility and export reliability: JSON export for traces enables smoother downstream processing and integrations. - Increased developer and analyst productivity: faster table interactions (sorting, charts, pagination) and richer experiment context through traces and prompts details. Technologies and skills demonstrated: - Frontend React/TypeScript proficiency with advanced table components, charts integration, and responsive design. - UX design and information architecture improvements for dense data surfaces. - Performance optimization and robust error handling, including optimistic update cancellation and faster UI feedback. - End-to-end feature integration across prompts, experiments, traces, and dataset views, reflecting strong cross-team collaboration.
November 2024
26 Commits • 14 Features
Nov 1, 2024Monthly summary for 2024-11 (comet-ml/opik). Focused on delivering frontend UX improvements, data presentation enhancements, and robust fixes that improve end-user productivity and data reliability. Key features delivered: - OPIK-377 Remove line highlighting in code blocks: Simplified code presentation; reduced visual noise for developers reviewing code blocks. (Commit 854ea085b9eaacc6a2561863d6cd2d2a8701d882) - OPIK-273 UX improvements: Remove Actions top-level button: Streamlined actions surface to reduce clutter and improve workflow efficiency. (Commit a4037dbf37a8eb5c8f6e8e49ca3228b91967dd42) - OPIK-379 Introduce separator in table header: Clearer column separation improves readability in dense tables. (Commit 1624bfd356c47067002a252706e70e4795df7e26) - OPIK-375 Traces UI: Add traces and LLM calls tabs in traces table: Enhanced trace visibility and context for experiments. (Commit a8f7b24b6ee5787e0c1978547514e846d665493a) - OPIK-239 UX improvements: Add charts of experiment table: Quick insights from experiments with visual charts. (Commits 66e3271bd0a541a11e681fbd91ced755e28551de; fb9cccf569e7ac07b65f7c530ddb2e08c9f30038) - OPIK-372 FE: Add sorting for projects table: Improved data discovery and usability through frontend sorting. (Commits 8af5d3e3b4de2049998cb5ab1151b52bd768d3d5; 1f29cc3cc3b99c6870a9ac09b9f269a7e84f5a17) - OPIK-492 Data Export: Export traces as JSON instead of CSV: Aligns with downstream processing and reduces parsing complexity. (Commit ee3cb508d831b62b87e8a1a11771ba36b6f78fe0) - OPIK-350 Prompts Library FE: Prompts details – Experiments tab: Enriched Prompts details with Experiments context for faster discovery. (Commits f53a671aeb03b15db09003fc2d4ef5fee1ac022f; 31a71f007b59505c684d88d000ce12ec18a608db) Major bugs fixed: - ISSUE-522 YAML formatting bug: Corrected YAML formatting for edge-case strings to ensure reliable config loading. (Commit 26b7d56c20e778acb11518932594926bd40750f1) - ISSUE-612 Broken design in new Experiments page: Resolved layout inconsistencies for stable user experience. (Commit f539fc0db14f9b275044e473064cbdca4906e8a7) - OPIK-448 FE: UI on editing feedback score was slow: Optimized rendering and interaction path for faster feedback score edits. (Commit c020c089f24a33fbb76e95e5701b4356328248e7) - OPIK-729 Optimistic Update Robustness: Added request cancellation before making an optimistic update to improve reliability. (Commit 67d2f5767528c58baa5bc3de01136a3d10bb4e4f) Overall impact and accomplishments: - Substantial UX and performance improvements across the FE: faster navigation, clearer data presentation, and more reliable interactions. - Enhanced data visibility and export reliability: JSON export for traces enables smoother downstream processing and integrations. - Increased developer and analyst productivity: faster table interactions (sorting, charts, pagination) and richer experiment context through traces and prompts details. Technologies and skills demonstrated: - Frontend React/TypeScript proficiency with advanced table components, charts integration, and responsive design. - UX design and information architecture improvements for dense data surfaces. - Performance optimization and robust error handling, including optimistic update cancellation and faster UI feedback. - End-to-end feature integration across prompts, experiments, traces, and dataset views, reflecting strong cross-team collaboration.
October 2024
1 Commits • 1 Features
Oct 1, 2024October 2024 monthly summary for comet-ml/opik: Implemented Docker build enhancement to enable patch application during frontend build, improving YAML preview reliability and reducing manual patch steps. Initiated alignment with YAML-related issues and prepared ground for further reliability improvements in the UI rendering.
1 Commits • 1 Features
Oct 1, 2024October 2024 monthly summary for comet-ml/opik: Implemented Docker build enhancement to enable patch application during frontend build, improving YAML preview reliability and reducing manual patch steps. Initiated alignment with YAML-related issues and prepared ground for further reliability improvements in the UI rendering.
October 2024
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Quality Metrics
Correctness90.4%
Maintainability89.4%
Architecture86.0%
Performance85.2%
AI Usage23.8%
Skills & Technologies
Programming Languages
BashCSSDockerfileHTMLJavaJavaScriptMarkdownPythonReactSCSS
Technical Skills
API DevelopmentAPI IntegrationAccessibilityBackend DevelopmentBug FixingCSSChart VisualizationCode Editor IntegrationCode Mirror IntegrationCode QualityCode RefactoringCodeMirrorComponent ArchitectureComponent DesignComponent Development
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