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update symbol to json #16948

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Feb 16, 2020
Merged

update symbol to json #16948

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2c94367
update symbol to json
chinakook Nov 29, 2019
732e1a4
retrigger CI
wkcn Feb 16, 2020
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9 changes: 7 additions & 2 deletions python/mxnet/symbol/symbol.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1366,15 +1366,20 @@ def save(self, fname, remove_amp_cast=True):
else:
check_call(_LIB.MXSymbolSaveToFile(self.handle, c_str(fname)))

def tojson(self):
def tojson(self, remove_amp_cast=True):
"""Saves symbol to a JSON string.

See Also
--------
symbol.load_json : Used to load symbol from JSON string.
"""
json_str = ctypes.c_char_p()
check_call(_LIB.MXSymbolSaveToJSON(self.handle, ctypes.byref(json_str)))
if remove_amp_cast:
handle = SymbolHandle()
check_call(_LIB.MXSymbolRemoveAmpCast(self.handle, ctypes.byref(handle)))
check_call(_LIB.MXSymbolSaveToJSON(handle, ctypes.byref(json_str)))
else:
check_call(_LIB.MXSymbolSaveToJSON(self.handle, ctypes.byref(json_str)))
return py_str(json_str.value)

@staticmethod
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