[kraken] Add kraken ledger support

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Coverage summary from Codacy

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Coverage variation	Diff coverage
Report missing for 2fc07265bc89863bfc9bb19eb0a9cb11f642c205[^1]	:white_check_mark: 88.52%

Coverage variation details

| | Coverable lines | Covered lines | Coverage | | ------------- | ------------- | ------------- | ------------- | | Common ancestor commit (2fc07265bc89863bfc9bb19eb0a9cb11f642c205) | Report Missing | Report Missing | Report Missing | | | Head commit (ac010c91511fe8a67675c6cf323c505b3ff34ce8) | 160 | 134 | 83.75% | **Coverage variation** is the difference between the coverage for the head and common ancestor commits of the pull request branch: ` - `

Diff coverage details

| | Coverable lines | Covered lines | Diff coverage | | ------------- | ------------- | ------------- | ------------- | | Pull request (#44) | 122 | 108 | **88.52%** | **Diff coverage** is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: `/ * 100%`

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_{Codacy stopped sending the deprecated coverage status on June 5th, 2024. Learn more} [^1]: Codacy didn't receive coverage data for the commit, or there was an error processing the received data. Check your integration for errors and validate that your coverage setup is correct.