feature(nbt): CompoundBinaryTag contains methods

nbt/src/main/java/net/kyori/adventure/nbt/CompoundBinaryTag.java

@@ -154,6 +154,25 @@ public interface CompoundBinaryTag extends BinaryTag, CompoundTagSetter<Compound
     return BinaryTagTypes.COMPOUND;
   }
 
+  /**
+   * Returns whether the compound contains a specific key.
+   *
+   * @param key the key to check for
+   * @return whether the compound contains the key
+   * @since 4.24.0
+   */
+  boolean containsKey(final @NotNull String key);
+
+  /**
+   * Returns whether the compound contains a tag of a specific type under a key.
+   *
+   * @param key the key to check for
+   * @param type the type to check for
+   * @return whether there is a tag of <code>type</code> under <code>key</code>
+   * @since 4.24.0
+   */
+  boolean contains(final @NotNull String key, final @NotNull BinaryTagType<?> type);
+
   /**
    * Gets a set of all keys.
    *

nbt/src/main/java/net/kyori/adventure/nbt/CompoundBinaryTagImpl.java

@@ -48,6 +48,12 @@ final class CompoundBinaryTagImpl extends AbstractBinaryTag implements CompoundB
     this.hashCode = tags.hashCode();
   }
 
+  @Override
+  public boolean containsKey(final @NotNull String key) {
+    return this.tags.containsKey(key);
+  }
+
+  @Override
   public boolean contains(final @NotNull String key, final @NotNull BinaryTagType<?> type) {
     final @Nullable BinaryTag tag = this.tags.get(key);
     return tag != null && type.test(tag.type());