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import gras
import numpy
from gnuradio import gr
from gnuradio import blocks
# Source block1 import
import gr_step_source
from gnuradio import blocks
class HierBlock(gr.hier_block2):
def __init__(self, step_size, H_Off, W_Off):
gr.hier_block2.__init__(self, "HierBlock",
gr.io_signature(1,1,gr.sizeof_float),
gr.io_signature(1,2,gr.sizeof_float))
# constant_block initialized
self.constant_block = gr.sig_source_f(0, gr.GR_CONST_WAVE,0,0,1)
# step_source block initialized
self.step_source = gr_step_source.step()
self.step_source.set_parameters(step_size, H_Off, W_Off)
self.connect(self, (self.constant_block,0) , (self.step_source,0), self)
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