How to use the parchment.Scope.BLOCK function in parchment

format(format, value) {
    this.scroll.update();
    const nativeRange = this.getNativeRange();
    if (
      nativeRange == null ||
      !nativeRange.native.collapsed ||
      this.scroll.query(format, Scope.BLOCK)
    )
      return;
    if (nativeRange.start.node !== this.cursor.textNode) {
      const blot = this.scroll.find(nativeRange.start.node, false);
      if (blot == null) return;
      // TODO Give blot ability to not split
      if (blot instanceof LeafBlot) {
        const after = blot.split(nativeRange.start.offset);
        blot.parent.insertBefore(this.cursor, after);
      } else {
        blot.insertBefore(this.cursor, nativeRange.start.node); // Should never happen
      }
      this.cursor.attach();
    }
    this.cursor.format(format, value);
    this.scroll.optimize();

(formats, format) => {
        if (
          this.quill.scroll.query(format, Scope.BLOCK) &&
          !Array.isArray(context.format[format])
        ) {
          formats[format] = context.format[format];
        }
        return formats;
      },
      {},

return Object.keys(lastOp.attributes).some(attr => {
      return scroll.query(attr, Scope.BLOCK) != null;
    });
  }

return Object.keys(lastOp.attributes).some(attr => {
      return scroll.query(attr, Scope.BLOCK) != null;
    });
  }

insertAt(index, value, def) {
    if (index >= this.length()) {
      if (def == null || this.scroll.query(value, Scope.BLOCK) == null) {
        const blot = this.scroll.create(this.statics.defaultChild.blotName);
        this.appendChild(blot);
        if (def == null && value.endsWith('\n')) {
          blot.insertAt(0, value.slice(0, -1), def);
        } else {
          blot.insertAt(0, value, def);
        }
      } else {
        const embed = this.scroll.create(value, def);
        this.appendChild(embed);
      }
    } else {
      super.insertAt(index, value, def);
    }
    this.optimize();
  }

(formats, format) => {
        if (
          this.quill.scroll.query(format, Scope.BLOCK) &&
          !Array.isArray(context.format[format])
        ) {
          formats[format] = context.format[format];
        }
        return formats;
      },
      {},

formatAt(index, length, name, value) {
    if (length <= 0) return;
    if (this.scroll.query(name, Scope.BLOCK)) {
      if (index + length === this.length()) {
        this.format(name, value);
      }
    } else {
      super.formatAt(
        index,
        Math.min(length, this.length() - index - 1),
        name,
        value,
      );
    }
    this.cache = {};
  }