Load paterns
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.. module:: xc
	    
.. autoclass:: EQBasePattern
    :members:
    :show-inheritance:
	    
.. autoclass:: EarthquakePattern
    :members:
    :show-inheritance:
	    
.. autoclass:: UniformExcitation
    :members:
    :show-inheritance:
	    
.. autoclass:: MultiSupportPattern
    :members:
    :show-inheritance:
	    
.. autoclass:: PBowlLoading
    :members:
    :show-inheritance: