(_Please see [discuss.codelibs.org](https://discuss.codelibs.org/c/FessEN/8) before filing a bug._)

**Describe the bug**
A clear and concise description of what the bug is.

**To Reproduce**
Steps to reproduce the behavior:
1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

**Expected behavior**
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**Screenshots**

func imag(c ComplexType) FloatType

// The clear built-in function clears maps and slices.
// For maps, clear deletes all entries, resulting in an empty map.
// For slices, clear sets all elements up to the length of the slice
// to the zero value of the respective element type. If the argument
// type is a type parameter, the type parameter's type set must
// contain only map or slice types, and clear performs the operation

(_Please see [discuss.codelibs.org](https://discuss.codelibs.org/c/FessEN/8) before filing a bug._)

**Describe the bug**
A clear and concise description of what the bug is.

**To Reproduce**
Steps to reproduce the behavior:
1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

**Expected behavior**
A clear and concise description of what you expected to happen.

**Screenshots**

      }
    }
    if (broken != null) {
      throw new IllegalArgumentException("value already present: " + broken.getValue());
    }
  }

  @Override
  public void clear() {
    delegate.clear();
    inverse.delegate.clear();
  }

  // Views

  @Override
  public BiMap<V, K> inverse() {
    return inverse;
  }

  @LazyInit private transient @Nullable Set<K> keySet;

    assertMultimapRemainsUnmodified(multimap, originalEntries);

    Collection<V> sampleValueAsCollection = singleton(sampleValue);

    // Test #clear()
    try {
      multimap.clear();
      fail("clear succeeded on unmodifiable multimap");
    } catch (UnsupportedOperationException expected) {
    }

    assertMultimapRemainsUnmodified(multimap, originalEntries);

public class MultisetEntrySetTester<E> extends AbstractMultisetTester<E> {

  @CollectionFeature.Require(SUPPORTS_REMOVE)
  public void testEntrySet_clear() {
    getMultiset().entrySet().clear();
    assertTrue("multiset not empty after entrySet().clear()", getMultiset().isEmpty());
  }

  @CollectionSize.Require(ONE)
  @CollectionFeature.Require(SUPPORTS_ITERATOR_REMOVE)
  public void testEntrySet_iteratorRemovePropagates() {

    totalSize -= collection.size();
    collection.clear();

    return unmodifiableCollectionSubclass(output);
  }

  <E extends @Nullable Object> Collection<E> unmodifiableCollectionSubclass(
      Collection<E> collection) {
    return Collections.unmodifiableCollection(collection);
  }

  @Override
  public void clear() {
    // Clear each collection, to make previously returned collections empty.

public class MultisetEntrySetTester<E> extends AbstractMultisetTester<E> {

  @CollectionFeature.Require(SUPPORTS_REMOVE)
  public void testEntrySet_clear() {
    getMultiset().entrySet().clear();
    assertTrue("multiset not empty after entrySet().clear()", getMultiset().isEmpty());
  }

  @CollectionSize.Require(ONE)
  @CollectionFeature.Require(SUPPORTS_ITERATOR_REMOVE)
  public void testEntrySet_iteratorRemovePropagates() {

    assertMultimapRemainsUnmodified(multimap, originalEntries);

    Collection<V> sampleValueAsCollection = singleton(sampleValue);

    // Test #clear()
    try {
      multimap.clear();
      fail("clear succeeded on unmodifiable multimap");
    } catch (UnsupportedOperationException expected) {
    }

    assertMultimapRemainsUnmodified(multimap, originalEntries);

from sqlmodel import SQLModel, create_engine
from sqlmodel.main import default_registry

from tests.utils import needs_py310


def clear_sqlmodel():
    # Clear the tables in the metadata for the default base model
    SQLModel.metadata.clear()
    # Clear the Models associated with the registry, to avoid warnings
    default_registry.dispose()


@pytest.fixture(
    name="client",
    params=[