Question (see pic) Code: (see question below the code): class Document: #TO DO: define the constructor method, __init__ and then initialize values #def __init__(___, ___): # initilialize values here #TO DO: define the method add_words #def add_words(___, ___): #TO DO: define the method submit #def submit(___): #TO DO: define the method get_grade #def get_grade(___): def __str__(self): #TO DO: Fill in the blanks document_info = f"This Document instance has _ instance attributes.
" document_info += f"The class used to create this object has _ methods and _ class attribute.
" document_info += f"This Document instance has the following stats.
" #TO DO: Complete document_info by adding more lines below return document_info if __name__ == "__main__": while(True): command = input() if command == 'exit': break exec(command) print(essay) Create a Python class, Document.Using PYTHON: The instances of this class have the following attributes: word_count, status, grade, asked_grade_before_submission_count and the following methods: add_words, submit,get_grade,(1) key - a class attribute that determines the output when printing the document instance. It has a value of 0 by default.Let us also add these additional method/s for the Document class:str . For this exercise, we will add the following attribute/s:(1) copy_content - takes in source_document as a parameter of type Document then updates the word_count of the destination document (or the document where this method was invoked). Theword_count is updated accordingly so that the content of the destination document is replaced by the source document.(2) append_content - takes in source_document as a parameter of type Document then updates the word_count of the destination document. The word_count is updated such that the content ofthe source document is appended to the destination document.Input FormatThe inputs are commands that can access an attribute or invoke a method of a Document instance. These commands can either be valid or invalid.ConstraintsString arguments when creating a Document instance and when invoking the add words method will be limited to 1000 characters at maximum. Only alphanumeric characters will be used as anargument to these methods.The invalid commands only include those that are trying to access an attribute of the object that is undefined.FormatThe output will be composed of 5 - 6 lines. The first five lines show the stats of the document being printed. The other is either an empty string or a string that shows one out of many descriptionsof the Document instance being printed.Sample Input 2essay = Document ("Roses are red")classes ['essay'] = essayessay_draft = Document ("Violets are blue")classes ['essay_draft'] = essay_draftessay. append_content(essay_draft)essay.add_words ("Sugar is sweet and so are you")essay.key_1essay.delete( )essay.key = 0exitSample Input 0essay = Document ("Roses are red")classes ['essay'] = essayessay_draft = Document("Violets are blue")classes ['essay_draft'] = essay_draftessay.append_content(essay_draft)essay.key = 0exitSample Output 0Valid commandValid commandValid commandValid commandValid commandSample Output 2Valid commandValid commandValid commandValid commandThis Document instance has the following stats.1. word count: 6Valid commandValid commandValid command2. status: draft3. grade: awaiting submission4. number of times the grade was requested before the document was submitted: 0Invalid commandInvalid commandValid commandThis Document instance has the following stats.1. word count: 132. status: draft3. grade: awaiting submission4. number of times the grade was requested before the document was submitted: 0Sample Input 1essay = Document ("Roses are red")classes['essay'] = essayessay_draft = Document("Violets are blue")classes ['essay_draft'] = essay_draftessay.append_content (essay_draft)another_essay_v2 = Document ("Go away Anna! Okay bye.")essay.copy_content(another_essay_v2)essay.key = 0Sample Input 3essay = Document ("Roses are red")classes ['essay'] = essayessay_draft = Document ("Violets are blue")classes ['essay_draft'] = essay_draftessay.append_content(essay_draft).append_content(essay_draft)essay.add_words("Sugar is sweet and so are you")essay.key_1essay.delete()essay.key = 0exitexitSample Output 1Valid commandValid commandValid commandValid commandValid commandValid commandValid commandValid commandThis Document instance has the following stats.1. word count: 5Sample Output 3Valid commandValid commandValid commandValid commandValid command2. status: draft3. grade: awaiting submission4. number of times the grade was requested before the document was submitted: 0Valid commandInvalid commandInvalid commandValid commandThis Document instance has the following stats.1. word count: 162. status: draft3. grade: awaiting submission4. number of times the grade was requested before the document was submitted: 0

Question

Question (see pic) Code: (see question below the code): class Document:  #TO DO: define the constructor method, __init__ and then initialize values  #def __init__(___, ___):    # initilialize values here      #TO DO: define the method add_words  #def add_words(___, ___):    #TO DO: define the method submit  #def submit(___):    #TO DO: define the method get_grade  #def get_grade(___):    def __str__(self):    #TO DO: Fill in the blanks    document_info = f&#34;This Document instance has _ instance attributes.
&#34;    document_info += f&#34;The class used to create this object has _ methods and _ class attribute.
&#34;    document_info += f&#34;This Document instance has the following stats.
&#34;    #TO DO: Complete document_info by adding more lines below          return document_info  if __name__ == &#34;__main__&#34;:  while(True):    command = input()    if command == 'exit':      break    exec(command)  print(essay) Create a Python class, Document.Using PYTHON: The instances of this class have the following attributes: word_count, status, grade, asked_grade_before_submission_count and the following methods: add_words, submit,get_grade,(1) key - a class attribute that determines the output when printing the document instance. It has a value of 0 by default.Let us also add these additional method/s for the Document class:str . For this exercise, we will add the following attribute/s:(1) copy_content - takes in source_document as a parameter of type Document then updates the word_count of the destination document (or the document where this method was invoked). Theword_count is updated accordingly so that the content of the destination document is replaced by the source document.(2) append_content - takes in source_document as a parameter of type Document then updates the word_count of the destination document. The word_count is updated such that the content ofthe source document is appended to the destination document.Input FormatThe inputs are commands that can access an attribute or invoke a method of a Document instance. These commands can either be valid or invalid.ConstraintsString arguments when creating a Document instance and when invoking the add words method will be limited to 1000 characters at maximum. Only alphanumeric characters will be used as anargument to these methods.The invalid commands only include those that are trying to access an attribute of the object that is undefined.FormatThe output will be composed of 5 - 6 lines. The first five lines show the stats of the document being printed. The other is either an empty string or a string that shows one out of many descriptionsof the Document instance being printed.Sample Input 2essay = Document (&#34;Roses are red&#34;)classes ['essay'] = essayessay_draft = Document (&#34;Violets are blue&#34;)classes ['essay_draft'] = essay_draftessay. append_content(essay_draft)essay.add_words (&#34;Sugar is sweet and so are you&#34;)essay.key_1essay.delete( )essay.key = 0exitSample Input 0essay = Document (&#34;Roses are red&#34;)classes ['essay'] = essayessay_draft = Document(&#34;Violets are blue&#34;)classes ['essay_draft'] = essay_draftessay.append_content(essay_draft)essay.key = 0exitSample Output 0Valid commandValid commandValid commandValid commandValid commandSample Output 2Valid commandValid commandValid commandValid commandThis Document instance has the following stats.1. word count: 6Valid commandValid commandValid command2. status: draft3. grade: awaiting submission4. number of times the grade was requested before the document was submitted: 0Invalid commandInvalid commandValid commandThis Document instance has the following stats.1. word count: 132. status: draft3. grade: awaiting submission4. number of times the grade was requested before the document was submitted: 0Sample Input 1essay = Document (&#34;Roses are red&#34;)classes['essay'] = essayessay_draft = Document(&#34;Violets are blue&#34;)classes ['essay_draft'] = essay_draftessay.append_content (essay_draft)another_essay_v2 = Document (&#34;Go away Anna! Okay bye.&#34;)essay.copy_content(another_essay_v2)essay.key = 0Sample Input 3essay = Document (&#34;Roses are red&#34;)classes ['essay'] = essayessay_draft = Document (&#34;Violets are blue&#34;)classes ['essay_draft'] = essay_draftessay.append_content(essay_draft).append_content(essay_draft)essay.add_words(&#34;Sugar is sweet and so are you&#34;)essay.key_1essay.delete()essay.key = 0exitexitSample Output 1Valid commandValid commandValid commandValid commandValid commandValid commandValid commandValid commandThis Document instance has the following stats.1. word count: 5Sample Output 3Valid commandValid commandValid commandValid commandValid command2. status: draft3. grade: awaiting submission4. number of times the grade was requested before the document was submitted: 0Valid commandInvalid commandInvalid commandValid commandThis Document instance has the following stats.1. word count: 162. status: draft3. grade: awaiting submission4. number of times the grade was requested before the document was submitted: 0

Accepted Answer

Given:

Question (see pic) 
Code: (see question below the code): 
class Document:  #TO DO: define…