cic-eth: Integrate transaction list queries

apps/cic-eth/tests/mock/__init__.py

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+from .filter import *

apps/cic-eth/tests/mock/filter.py

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+# third-party imports
+import celery
+import moolb
+
+celery_app = celery.current_app
+
+block_filter = moolb.Bloom(1024, 3)
+tx_filter = moolb.Bloom(1024, 3)
+lo = 0
+hi = 100
+
+
+@celery_app.task()
+def filter(address, offset, limit):
+    return {
+        'alg': 'sha256',
+        'high': hi,
+        'low': lo,
+        'block_filter': block_filter.to_bytes().hex(),
+        'blocktx_filter': tx_filter.to_bytes().hex(),
+        'filter_rounds': 3,
+            }