chore(Py): Fix unused imports in tests
import unittest.mock
-from stencila.schema.interpreter import Interpreter, DocumentCompiler, ParameterParser, execute_compilation, \
- compile_article, DocumentCompilationResult, SKIP_OUTPUT_SEMAPHORE
-from stencila.schema.code_parsing import CodeChunkParseResult, CodeChunkExecution, CodeChunkParser
+from stencila.schema.code_parsing import CodeChunkExecution, CodeChunkParser
+from stencila.schema.interpreter import Interpreter, execute_compilation, compile_article, DocumentCompilationResult, \
+ SKIP_OUTPUT_SEMAPHORE
from stencila.schema.types import CodeExpression, CodeChunk, Article
