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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def indent(text, branch_method, leaf_method, pass_syntax, flush_left_syntax, flush_left_empty_line, indentation_method, get_block=get_indented_block):
 """Returns HTML as a basestring. Parameters text : basestring Source code, typically SHPAML, but could be a different (but related) language. The remaining parameters specify details about the language used in the source code. To parse SHPAML, pass the same values as convert_shpaml_tree. branch_method : function convert_shpaml_tree passes html_block_tag here. leaf_method : function convert_shpaml_tree passes convert_line here. pass_syntax : basestring convert_shpaml_tree passes PASS_SYNTAX here. flush_left_syntax : basestring convert_shpaml_tree passes FLUSH_LEFT_SYNTAX here. flush_left_empty_line : basestring convert_shpaml_tree passes FLUSH_LEFT_EMPTY_LINE here. indentation_method : function convert_shpaml_tree passes _indent here. get_block : function Defaults to get_indented_block. """

    text = text.rstrip()
    lines = text.split('\n')
    if lines and lines[0].startswith('!! '):
        lines[0] = lines[0].replace('!! ', '<!DOCTYPE ') + '>'
    output = []
    indent_lines(lines, output, branch_method, leaf_method, pass_syntax, flush_left_syntax, flush_left_empty_line,
                 indentation_method, get_block=get_indented_block)
    return '\n'.join(output) + '\n'