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Rule set ``@PHP73Migration``
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Rules to improve code for PHP 7.3 compatibility.

Rules
-----

- `@PHP71Migration <./PHP71Migration.rst>`_
- `heredoc_indentation <./../rules/whitespace/heredoc_indentation.rst>`_
- `method_argument_space <./../rules/function_notation/method_argument_space.rst>`_
  config:
  ``['after_heredoc' => true]``
- `no_whitespace_before_comma_in_array <./../rules/array_notation/no_whitespace_before_comma_in_array.rst>`_
  config:
  ``['after_heredoc' => true]``
- `trailing_comma_in_multiline <./../rules/control_structure/trailing_comma_in_multiline.rst>`_
  config:
  ``['after_heredoc' => true]``
