Contract con_testtokenfee

  

    

      

        

            
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balances = Hash(default_value=0)
          

            
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metadata = Hash()
          

            
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@construct
          

            
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def seed():
          

            
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    balances[ctx.caller] = 99
          

            
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    balances["ff61544ea94eaaeb5df08ed863c4a938e9129aba6ceee5f31b6681bdede11b89"] = 1
          

            
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    metadata["token_name"] = "TestTokenFee"
          

            
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    metadata["token_symbol"] = "TTF"
          

            
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    metadata["token_logo_base64_png"] = ""
          

            
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    metadata["operator"] = "ff61544ea94eaaeb5df08ed863c4a938e9129aba6ceee5f31b6681bdede11b89"
          

            
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@export
          

            
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def change_metadata(key: str, value: Any):
          

            
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    assert ctx.caller == metadata["operator"], "Only operator can set metadata!"
          

            
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    metadata[key] = value
          

            
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@export
          

            
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def transfer(amount: float, to: str):
          

            
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    assert amount > 0, "Cannot send negative balances!"
          

            
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    assert balances[ctx.caller] >= amount, "Not enough coins to send!"
          

            
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    balances[ctx.caller] -= amount
          

            
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    balances[to] += amount
          

            
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@export
          

            
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def approve(amount: float, to: str):
          

            
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    assert amount > 0, "Cannot send negative balances!"
          

            
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    balances[ctx.caller, to] += amount
          

            
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@export
          

            
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def transfer_from(amount: float, to: str, main_account: str):
          

            
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    assert amount > 0, "Cannot send negative balances!"
          

            
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    assert balances[main_account, ctx.caller] >= amount, "Not enough coins approved to send! You have {} and are trying to spend {}".format(balances[main_account, ctx.caller], amount)
          

            
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    assert balances[main_account] >= amount, "Not enough coins to send!"
          

            
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    balances[main_account, ctx.caller] -= amount
          

            
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    balances[main_account] -= amount
          

            
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    balances[to] += amount
          

            
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@export
          

            
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def mint(amount: float):
          

            
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    assert ctx.caller == metadata["operator"], "Only operator can mint!"
          

            
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    assert amount > 0, "Cannot mint negative amount!"
          

            
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    balances[ctx.caller] += amount
          

            
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