

import colorsys
import io

import cva
import matplotlib as mpl
import matplotlib.colors as mplc
import matplotlib.figure as mplfigure
import numpy as np
import torch
from matplotlib.backends.backend_agg import FigureCanvasAgg

from utils import img_tensorize


SCREAMING_SNAKE_CASE						:Union[str, Any]      =			1000






class 		__magic_name__ :






     def __init__(							self						,		_lowercase						,		_lowercase=1.2						,		_lowercase="g"						,		_lowercase=0.5						,		_lowercase="-"						,		_lowercase="test_out.jpg"						,		_lowercase=True						,		_lowercase=False						,		_lowercase=None						,		_lowercase=None						,		_lowercase=0.7						,		)->			Dict:
         if isinstance(_lowercase						,		torch.Tensor     ):
             UpperCamelCase_          =		img.numpy().astype("np.uint8"     )
         if isinstance(_lowercase						,		_lowercase     ):
             UpperCamelCase_          =		img_tensorize(_lowercase     )
         assert isinstance(_lowercase						,		np.ndarray     )

         UpperCamelCase_   ,    UpperCamelCase_          =		img.shape[1], img.shape[0]
         UpperCamelCase_          =		mplfigure.Figure(frameon=_lowercase     )
         UpperCamelCase_          =		fig.get_dpi()
         UpperCamelCase_          =		(width * scale + 1e-2) / dpi
         UpperCamelCase_          =		(height * scale + 1e-2) / dpi
         fig.set_size_inches(_lowercase						,		_lowercase     )
         UpperCamelCase_          =		fig.add_axes([0.0, 0.0, 1.0, 1.0]     )
         ax.axis("off"     )
         ax.set_xlim(0.0						,		_lowercase     )
         ax.set_ylim(_lowercase     )

         UpperCamelCase_          =		saveas
         UpperCamelCase_          =		rgb
         UpperCamelCase_          =		pynb
         UpperCamelCase_          =		img
         UpperCamelCase_          =		edgecolor
         UpperCamelCase_          =		0.5
         UpperCamelCase_          =		linestyle
         UpperCamelCase_          =		int(np.sqrt(min(_lowercase						,		_lowercase     )     ) * scale // 3     )
         UpperCamelCase_          =		width
         UpperCamelCase_          =		height
         UpperCamelCase_          =		scale
         UpperCamelCase_          =		fig
         UpperCamelCase_          =		ax
         UpperCamelCase_          =		pad
         UpperCamelCase_          =		idaobj
         UpperCamelCase_          =		idaattr
         UpperCamelCase_          =		FigureCanvasAgg(_lowercase     )






     def      UpperCAmelCase_							(							self						,		_lowercase						,		_lowercase=None     )->			List[str]:
         if color is None:
             UpperCamelCase_          =		self.edgecolor
         ((UpperCamelCase_)   ,    (UpperCamelCase_)   ,    (UpperCamelCase_)   ,    (UpperCamelCase_))          =		box
         UpperCamelCase_          =		xa - xa
         UpperCamelCase_          =		ya - ya
         self.ax.add_patch(
             mpl.patches.Rectangle(
                 (xa, ya)						,		_lowercase						,		_lowercase						,		fill=_lowercase						,		edgecolor=_lowercase						,		linewidth=self.font_size // 3						,		alpha=self.alpha						,		linestyle=self.linestyle						,		)     )






     def      UpperCAmelCase_							(							self						,		_lowercase						,		_lowercase=None						,		_lowercase=None						,		_lowercase=None						,		_lowercase=None     )->			Any:
         if len(boxes.shape     ) > 2:
             UpperCamelCase_          =		boxes[0]
         if len(obj_ids.shape     ) > 1:
             UpperCamelCase_          =		obj_ids[0]
         if len(obj_scores.shape     ) > 1:
             UpperCamelCase_          =		obj_scores[0]
         if len(attr_ids.shape     ) > 1:
             UpperCamelCase_          =		attr_ids[0]
         if len(attr_scores.shape     ) > 1:
             UpperCamelCase_          =		attr_scores[0]
         if isinstance(_lowercase						,		torch.Tensor     ):
             UpperCamelCase_          =		boxes.numpy()
         if isinstance(_lowercase						,		_lowercase     ):
             UpperCamelCase_          =		np.array(_lowercase     )
         assert isinstance(_lowercase						,		np.ndarray     )
         UpperCamelCase_          =		np.prod(boxes[:, 2:] - boxes[:, :2]						,		axis=1     )
         UpperCamelCase_          =		np.argsort(-areas     ).tolist()
         UpperCamelCase_          =		boxes[sorted_idxs] if boxes is not None else None
         UpperCamelCase_          =		obj_ids[sorted_idxs] if obj_ids is not None else None
         UpperCamelCase_          =		obj_scores[sorted_idxs] if obj_scores is not None else None
         UpperCamelCase_          =		attr_ids[sorted_idxs] if attr_ids is not None else None
         UpperCamelCase_          =		attr_scores[sorted_idxs] if attr_scores is not None else None

         UpperCamelCase_          =		[self._random_color(maximum=1     ) for _ in range(len(_lowercase     )     )]
         UpperCamelCase_          =		[assigned_colors[idx] for idx in sorted_idxs]
         if obj_ids is not None:
             UpperCamelCase_          =		self._create_text_labels_attr(_lowercase						,		_lowercase						,		_lowercase						,		_lowercase     )
             for i in range(len(_lowercase     )     ):
                 UpperCamelCase_          =		assigned_colors[i]
                 self.add_box(boxes[i]						,		_lowercase     )
                 self.draw_labels(labels[i]						,		boxes[i]						,		_lowercase     )






     def      UpperCAmelCase_							(							self						,		_lowercase						,		_lowercase						,		_lowercase     )->			Union[str, Any]:
         UpperCamelCase_   ,    UpperCamelCase_   ,    UpperCamelCase_   ,    UpperCamelCase_          =		box
         UpperCamelCase_          =		(xa, ya)
         UpperCamelCase_          =		(ya - ya) * (xa - xa)
         UpperCamelCase_          =		_SMALL_OBJ * self.scale
         if instance_area < small or ya - ya < 40 * self.scale:
             if ya >= self.height - 5:
                 UpperCamelCase_          =		(xa, ya)
             else:
                 UpperCamelCase_          =		(xa, ya)

         UpperCamelCase_          =		(ya - ya) / np.sqrt(self.height * self.width     )
         UpperCamelCase_          =		self._change_color_brightness(_lowercase						,		brightness_factor=0.7     )
         UpperCamelCase_          =		np.clip((height_ratio - 0.02) / 0.08 + 1						,		1.2						,		2     )
         font_size *= 0.75 * self.font_size

         self.draw_text(
             text=_lowercase						,		position=_lowercase						,		color=_lowercase						,		)






     def      UpperCAmelCase_							(							self						,		_lowercase						,		_lowercase						,		_lowercase="g"						,		_lowercase="left"						,		)->			str:
         UpperCamelCase_          =		0
         UpperCamelCase_          =		self.font_size
         UpperCamelCase_          =		np.maximum(list(mplc.to_rgb(_lowercase     )     )						,		0.2     )
         UpperCamelCase_          =		max(0.8						,		np.max(_lowercase     )     )
         UpperCamelCase_          =		{
             "facecolor": "black",
             "alpha": self.alpha,
             "pad": self.pad,
             "edgecolor": "none",
         }
         UpperCamelCase_   ,    UpperCamelCase_          =		position
         self.ax.text(
             _lowercase						,		_lowercase						,		_lowercase						,		size=font_size * self.scale						,		family="sans-serif"						,		bbox=_lowercase						,		verticalalignment="top"						,		horizontalalignment=_lowercase						,		color=_lowercase						,		zorder=10						,		rotation=_lowercase						,		)






     def      UpperCAmelCase_							(							self						,		_lowercase=None     )->			int:
         if saveas is None:
             UpperCamelCase_          =		self.saveas
         if saveas.lower().endswith(".jpg"     ) or saveas.lower().endswith(".png"     ):
             cva.imwrite(
                 _lowercase						,		self._get_buffer()[:, :, ::-1]						,		)
         else:
             self.fig.savefig(_lowercase     )






     def      UpperCAmelCase_							(							self						,		_lowercase						,		_lowercase						,		_lowercase						,		_lowercase     )->			Tuple:
         UpperCamelCase_          =		[self.idaobj[i] for i in classes]
         UpperCamelCase_          =		[self.idaattr[i] for i in attr_classes]
         UpperCamelCase_          =		[
             F"{label} {score:.2f} {attr} {attr_score:.2f}"
             for label, score, attr, attr_score in zip(_lowercase						,		_lowercase						,		_lowercase						,		_lowercase     )
         ]
         return labels






     def      UpperCAmelCase_							(							self						,		_lowercase						,		_lowercase     )->			int:
         UpperCamelCase_          =		[self.idaobj[i] for i in classes]
         if scores is not None:
             if labels is None:
                 UpperCamelCase_          =		["{:.0f}%".format(s * 100     ) for s in scores]
             else:
                 UpperCamelCase_          =		["{} {:.0f}%".format(_lowercase						,		s * 100     ) for li, s in zip(_lowercase						,		_lowercase     )]
         return labels






     def      UpperCAmelCase_							(							self						,		_lowercase=255     )->			Optional[Any]:
         UpperCamelCase_          =		np.random.randint(0						,		len(_COLORS     )     )
         UpperCamelCase_          =		_COLORS[idx] * maximum
         if not self.rgb:
             UpperCamelCase_          =		ret[::-1]
         return ret






     def      UpperCAmelCase_							(							self     )->			int:
         if not self.pynb:
             UpperCamelCase_   ,    UpperCamelCase_          =		self.canvas.print_to_buffer()
             if (width, height) != (self.width, self.height):
                 UpperCamelCase_          =		cva.resize(self.img						,		(width, height)     )
             else:
                 UpperCamelCase_          =		self.img
         else:
             UpperCamelCase_          =		io.BytesIO()  # works for cairo backend
             self.canvas.print_rgba(_lowercase     )
             UpperCamelCase_   ,    UpperCamelCase_          =		self.width, self.height
             UpperCamelCase_          =		buf.getvalue()
             UpperCamelCase_          =		self.img

         UpperCamelCase_          =		np.frombuffer(_lowercase						,		dtype="uint8"     )
         UpperCamelCase_          =		buffer.reshape(_lowercase						,		_lowercase						,		4     )
         UpperCamelCase_   ,    UpperCamelCase_          =		np.split(_lowercase						,		[3]						,		axis=2     )

         try:
             import numexpr as ne  # fuse them with numexpr

             UpperCamelCase_          =		ne.evaluate("img * (1 - alpha / 255.0) + rgb * (alpha / 255.0)"     )
         except ImportError:
             UpperCamelCase_          =		alpha.astype("float32"     ) / 255.0
             UpperCamelCase_          =		img * (1 - alpha) + rgb * alpha

         return visualized_image.astype("uint8"     )






     def      UpperCAmelCase_							(							self						,		_lowercase						,		_lowercase     )->			List[str]:
         assert brightness_factor >= -1.0 and brightness_factor <= 1.0
         UpperCamelCase_          =		mplc.to_rgb(_lowercase     )
         UpperCamelCase_          =		colorsys.rgb_to_hls(*mplc.to_rgb(_lowercase     )     )
         UpperCamelCase_          =		polygon_color[1] + (brightness_factor * polygon_color[1])
         UpperCamelCase_          =		0.0 if modified_lightness < 0.0 else modified_lightness
         UpperCamelCase_          =		1.0 if modified_lightness > 1.0 else modified_lightness
         UpperCamelCase_          =		colorsys.hls_to_rgb(polygon_color[0]						,		_lowercase						,		polygon_color[2]     )
         return modified_color
SCREAMING_SNAKE_CASE						:str      =			(
    np.array(
        [
            0.0_0_0,
            0.4_4_7,
            0.7_4_1,
            0.8_5_0,
            0.3_2_5,
            0.0_9_8,
            0.9_2_9,
            0.6_9_4,
            0.1_2_5,
            0.4_9_4,
            0.1_8_4,
            0.5_5_6,
            0.4_6_6,
            0.6_7_4,
            0.1_8_8,
            0.3_0_1,
            0.7_4_5,
            0.9_3_3,
            0.6_3_5,
            0.0_7_8,
            0.1_8_4,
            0.3_0_0,
            0.3_0_0,
            0.3_0_0,
            0.6_0_0,
            0.6_0_0,
            0.6_0_0,
            1.0_0_0,
            0.0_0_0,
            0.0_0_0,
            1.0_0_0,
            0.5_0_0,
            0.0_0_0,
            0.7_4_9,
            0.7_4_9,
            0.0_0_0,
            0.0_0_0,
            1.0_0_0,
            0.0_0_0,
            0.0_0_0,
            0.0_0_0,
            1.0_0_0,
            0.6_6_7,
            0.0_0_0,
            1.0_0_0,
            0.3_3_3,
            0.3_3_3,
            0.0_0_0,
            0.3_3_3,
            0.6_6_7,
            0.0_0_0,
            0.3_3_3,
            1.0_0_0,
            0.0_0_0,
            0.6_6_7,
            0.3_3_3,
            0.0_0_0,
            0.6_6_7,
            0.6_6_7,
            0.0_0_0,
            0.6_6_7,
            1.0_0_0,
            0.0_0_0,
            1.0_0_0,
            0.3_3_3,
            0.0_0_0,
            1.0_0_0,
            0.6_6_7,
            0.0_0_0,
            1.0_0_0,
            1.0_0_0,
            0.0_0_0,
            0.0_0_0,
            0.3_3_3,
            0.5_0_0,
            0.0_0_0,
            0.6_6_7,
            0.5_0_0,
            0.0_0_0,
            1.0_0_0,
            0.5_0_0,
            0.3_3_3,
            0.0_0_0,
            0.5_0_0,
            0.3_3_3,
            0.3_3_3,
            0.5_0_0,
            0.3_3_3,
            0.6_6_7,
            0.5_0_0,
            0.3_3_3,
            1.0_0_0,
            0.5_0_0,
            0.6_6_7,
            0.0_0_0,
            0.5_0_0,
            0.6_6_7,
            0.3_3_3,
            0.5_0_0,
            0.6_6_7,
            0.6_6_7,
            0.5_0_0,
            0.6_6_7,
            1.0_0_0,
            0.5_0_0,
            1.0_0_0,
            0.0_0_0,
            0.5_0_0,
            1.0_0_0,
            0.3_3_3,
            0.5_0_0,
            1.0_0_0,
            0.6_6_7,
            0.5_0_0,
            1.0_0_0,
            1.0_0_0,
            0.5_0_0,
            0.0_0_0,
            0.3_3_3,
            1.0_0_0,
            0.0_0_0,
            0.6_6_7,
            1.0_0_0,
            0.0_0_0,
            1.0_0_0,
            1.0_0_0,
            0.3_3_3,
            0.0_0_0,
            1.0_0_0,
            0.3_3_3,
            0.3_3_3,
            1.0_0_0,
            0.3_3_3,
            0.6_6_7,
            1.0_0_0,
            0.3_3_3,
            1.0_0_0,
            1.0_0_0,
            0.6_6_7,
            0.0_0_0,
            1.0_0_0,
            0.6_6_7,
            0.3_3_3,
            1.0_0_0,
            0.6_6_7,
            0.6_6_7,
            1.0_0_0,
            0.6_6_7,
            1.0_0_0,
            1.0_0_0,
            1.0_0_0,
            0.0_0_0,
            1.0_0_0,
            1.0_0_0,
            0.3_3_3,
            1.0_0_0,
            1.0_0_0,
            0.6_6_7,
            1.0_0_0,
            0.3_3_3,
            0.0_0_0,
            0.0_0_0,
            0.5_0_0,
            0.0_0_0,
            0.0_0_0,
            0.6_6_7,
            0.0_0_0,
            0.0_0_0,
            0.8_3_3,
            0.0_0_0,
            0.0_0_0,
            1.0_0_0,
            0.0_0_0,
            0.0_0_0,
            0.0_0_0,
            0.1_6_7,
            0.0_0_0,
            0.0_0_0,
            0.3_3_3,
            0.0_0_0,
            0.0_0_0,
            0.5_0_0,
            0.0_0_0,
            0.0_0_0,
            0.6_6_7,
            0.0_0_0,
            0.0_0_0,
            0.8_3_3,
            0.0_0_0,
            0.0_0_0,
            1.0_0_0,
            0.0_0_0,
            0.0_0_0,
            0.0_0_0,
            0.1_6_7,
            0.0_0_0,
            0.0_0_0,
            0.3_3_3,
            0.0_0_0,
            0.0_0_0,
            0.5_0_0,
            0.0_0_0,
            0.0_0_0,
            0.6_6_7,
            0.0_0_0,
            0.0_0_0,
            0.8_3_3,
            0.0_0_0,
            0.0_0_0,
            1.0_0_0,
            0.0_0_0,
            0.0_0_0,
            0.0_0_0,
            0.1_4_3,
            0.1_4_3,
            0.1_4_3,
            0.8_5_7,
            0.8_5_7,
            0.8_5_7,
            1.0_0_0,
            1.0_0_0,
            1.0_0_0,
        ]
    )
    .astype(np.floataa)
    .reshape(-1, 3)
)




class lowerCAmelCase_						:

 '''simple docstring'''

 def __init__(	self		,      _UpperCAmelCase					):
       snake_case_       =      val
       # Number of nodes in left subtree
       snake_case_       =      0
       snake_case_       =      None
       snake_case_       =      None
       snake_case_       =      None





 def 						UpperCamelCase__     (	self		,      _UpperCAmelCase					):
       assert self.left_tree_size == other.left_tree_size, "Unequal Sizes of Blocks"

       if self.val < other.val:
             snake_case_       =      self.right
             snake_case_       =      None
             if self.right:
                   snake_case_       =      other
             snake_case_       =      other
             snake_case_       =      self.left_tree_size * 2 + 1
             return self
       else:
             snake_case_       =      other.right
             snake_case_       =      None
             if other.right:
                   snake_case_       =      self
             snake_case_       =      self
             snake_case_       =      other.left_tree_size * 2 + 1
             return other







class lowerCAmelCase_						:

 '''simple docstring'''

 def __init__(	self		,      _UpperCAmelCase=None		,      _UpperCAmelCase=None		,      _UpperCAmelCase=0					):
       snake_case_       =      heap_size
       snake_case_       =      bottom_root
       snake_case_       =      min_node



 def 						UpperCamelCase__     (	self		,      _UpperCAmelCase					):

       # Empty heaps corner cases
       if other.size == 0:
             return None
       if self.size == 0:
             snake_case_       =      other.size
             snake_case_       =      other.bottom_root
             snake_case_       =      other.min_node
             return None
       # Update size
       snake_case_       =      self.size + other.size

       # Update min.node
       if self.min_node.val > other.min_node.val:
             snake_case_       =      other.min_node
       # Merge

       # Order roots by left_subtree_size
       snake_case_       =      []
       snake_case_       ,    snake_case_       =      self.bottom_root, other.bottom_root
       while i or j:
             if i and ((not j) or i.left_tree_size < j.left_tree_size):
                   combined_roots_list.append((i, True)					)
                   snake_case_       =      i.parent
             else:
                   combined_roots_list.append((j, False)					)
                   snake_case_       =      j.parent
        # Insert links between them
       for i in range(len(_UpperCAmelCase					) - 1					):
             if combined_roots_list[i][1] != combined_roots_list[i + 1][1]:
                   snake_case_       =      combined_roots_list[i + 1][0]
                   snake_case_       =      combined_roots_list[i][0]
        # Consecutively merge roots with same left_tree_size
       snake_case_       =      combined_roots_list[0][0]
       while i.parent:
             if (
                 (i.left_tree_size == i.parent.left_tree_size) and (not i.parent.parent)
             ) or (
                 i.left_tree_size == i.parent.left_tree_size
                 and i.left_tree_size != i.parent.parent.left_tree_size
             ):
                   # Neighbouring Nodes
                   snake_case_       =      i.left
                   snake_case_       =      i.parent.parent

                   # Merging trees
                   snake_case_       =      i.merge_trees(i.parent					)

                   # Updating links
                   snake_case_       =      previous_node
                   snake_case_       =      next_node
                   if previous_node:
                         snake_case_       =      i
                   if next_node:
                         snake_case_       =      i
             else:
                   snake_case_       =      i.parent
        # Updating self.bottom_root
       while i.left:
             snake_case_       =      i.left
       snake_case_       =      i

       # Update other
       snake_case_       =      self.size
       snake_case_       =      self.bottom_root
       snake_case_       =      self.min_node

       # Return the merged heap
       return self



 def 						UpperCamelCase__     (	self		,      _UpperCAmelCase					):
       if self.size == 0:
             snake_case_       =      Node(_UpperCAmelCase					)
             snake_case_       =      1
             snake_case_       =      self.bottom_root
       else:
             # Create new node
             snake_case_       =      Node(_UpperCAmelCase					)

             # Update size
             self.size += 1

             # update min_node
             if val < self.min_node.val:
                   snake_case_       =      new_node
             # Put new_node as a bottom_root in heap
             snake_case_       =      new_node
             snake_case_       =      self.bottom_root
             snake_case_       =      new_node

             # Consecutively merge roots with same left_tree_size
             while (
                 self.bottom_root.parent
                 and self.bottom_root.left_tree_size
                 == self.bottom_root.parent.left_tree_size
             ):
                   # Next node
                   snake_case_       =      self.bottom_root.parent.parent

                   # Merge
                   snake_case_       =      self.bottom_root.merge_trees(self.bottom_root.parent					)

                   # Update Links
                   snake_case_       =      next_node
                   snake_case_       =      None
                   if next_node:
                         snake_case_       =      self.bottom_root



 def 						UpperCamelCase__     (	self					):
       return self.min_node.val



 def 						UpperCamelCase__     (	self					):
       return self.size == 0



 def 						UpperCamelCase__     (	self					):
       snake_case_       =      self.min_node.val

       # Last element in heap corner case
       if self.size == 1:
             # Update size
             snake_case_       =      0

             # Update bottom root
             snake_case_       =      None

             # Update min_node
             snake_case_       =      None

             return min_value
       # No right subtree corner case
       # The structure of the tree implies that this should be the bottom root
       # and there is at least one other root
       if self.min_node.right is None:
             # Update size
             self.size -= 1

             # Update bottom root
             snake_case_       =      self.bottom_root.parent
             snake_case_       =      None

             # Update min_node
             snake_case_       =      self.bottom_root
             snake_case_       =      self.bottom_root.parent
             while i:
                   if i.val < self.min_node.val:
                         snake_case_       =      i
                   snake_case_       =      i.parent
             return min_value
       # General case
       # Find the BinomialHeap of the right subtree of min_node
       snake_case_       =      self.min_node.right
       snake_case_       =      None
       snake_case_       =      bottom_of_new
       snake_case_       =      1

       # Size, min_node and bottom_root
       while bottom_of_new.left:
             snake_case_       =      size_of_new * 2 + 1
             snake_case_       =      bottom_of_new.left
             if bottom_of_new.val < min_of_new.val:
                   snake_case_       =      bottom_of_new
        # Corner case of single root on top left path
       if (not self.min_node.left) and (not self.min_node.parent):
             snake_case_       =      size_of_new
             snake_case_       =      bottom_of_new
             snake_case_       =      min_of_new
             # print("Single root, multiple nodes case")
             return min_value
       # Remaining cases
       # Construct heap of right subtree
       snake_case_       =      BinomialHeap(
           bottom_root=_UpperCAmelCase		,      min_node=_UpperCAmelCase		,      heap_size=_UpperCAmelCase					)

       # Update size
       snake_case_       =      self.size - 1 - size_of_new

       # Neighbour nodes
       snake_case_       =      self.min_node.left
       snake_case_       =      self.min_node.parent

       # Initialize new bottom_root and min_node
       snake_case_       =      previous_node or next_node
       snake_case_       =      next_node

       # Update links of previous_node and search below for new min_node and
       # bottom_root
       if previous_node:
             snake_case_       =      next_node

             # Update bottom_root and search for min_node below
             snake_case_       =      previous_node
             snake_case_       =      previous_node
             while self.bottom_root.left:
                   snake_case_       =      self.bottom_root.left
                   if self.bottom_root.val < self.min_node.val:
                         snake_case_       =      self.bottom_root
       if next_node:
             snake_case_       =      previous_node

             # Search for new min_node above min_node
             snake_case_       =      next_node
             while i:
                   if i.val < self.min_node.val:
                         snake_case_       =      i
                   snake_case_       =      i.parent
        # Merge heaps
       self.merge_heaps(_UpperCAmelCase					)

       return min_value



 def 						UpperCamelCase__     (	self					):
       snake_case_       =      self.bottom_root
       while top_root.parent:
             snake_case_       =      top_root.parent
       # preorder
       snake_case_       =      []
       self.__traversal(_UpperCAmelCase		,      _UpperCAmelCase					)
       return heap_pre_order



 def 						UpperCamelCase__     (	self		,      _UpperCAmelCase		,      _UpperCAmelCase		,      _UpperCAmelCase=0					):
       if curr_node:
             preorder.append((curr_node.val, level)					)
             self.__traversal(curr_node.left		,      _UpperCAmelCase		,      level + 1					)
             self.__traversal(curr_node.right		,      _UpperCAmelCase		,      level + 1					)
       else:
             preorder.append(('''#''', level)					)





 def __str__(	self					):
       if self.is_empty():
             return ""
       snake_case_       =      self.pre_order()

       return "\n".join(('''-''' * level + str(_UpperCAmelCase					)) for value, level in preorder_heap					)


# Unit Tests
if __name__ == "__main__":
   import doctest

   doctest.testmod()